diff --git a/docs/html/.buildinfo b/docs/html/.buildinfo
index a99059b4..a034584d 100644
--- a/docs/html/.buildinfo
+++ b/docs/html/.buildinfo
@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: 4551e3a239e6fc5ed4241438c4f07bb3
+config: a09c162d23fb15b626e4b201ce80537f
 tags: 645f666f9bcd5a90fca523b33c5a78b7
diff --git a/docs/html/.doctrees/environment.pickle b/docs/html/.doctrees/environment.pickle
index 92fe5952..40e45fc5 100644
Binary files a/docs/html/.doctrees/environment.pickle and b/docs/html/.doctrees/environment.pickle differ
diff --git a/docs/html/.doctrees/index.doctree b/docs/html/.doctrees/index.doctree
index cd290a4b..d5012b9b 100644
Binary files a/docs/html/.doctrees/index.doctree and b/docs/html/.doctrees/index.doctree differ
diff --git a/docs/html/.doctrees/intro.doctree b/docs/html/.doctrees/intro.doctree
index 4ec03f05..3d159c28 100644
Binary files a/docs/html/.doctrees/intro.doctree and b/docs/html/.doctrees/intro.doctree differ
diff --git a/docs/html/.doctrees/livemedia-creator.doctree b/docs/html/.doctrees/livemedia-creator.doctree
index 2fd2dc54..2e8de417 100644
Binary files a/docs/html/.doctrees/livemedia-creator.doctree and b/docs/html/.doctrees/livemedia-creator.doctree differ
diff --git a/docs/html/.doctrees/lorax.doctree b/docs/html/.doctrees/lorax.doctree
index c6688423..3aa2d873 100644
Binary files a/docs/html/.doctrees/lorax.doctree and b/docs/html/.doctrees/lorax.doctree differ
diff --git a/docs/html/.doctrees/modules.doctree b/docs/html/.doctrees/modules.doctree
index 95143052..002103e6 100644
Binary files a/docs/html/.doctrees/modules.doctree and b/docs/html/.doctrees/modules.doctree differ
diff --git a/docs/html/.doctrees/product-images.doctree b/docs/html/.doctrees/product-images.doctree
index 8e34f40c..243c7a56 100644
Binary files a/docs/html/.doctrees/product-images.doctree and b/docs/html/.doctrees/product-images.doctree differ
diff --git a/docs/html/.doctrees/pylorax.doctree b/docs/html/.doctrees/pylorax.doctree
index da9d5b74..a7ea6dd0 100644
Binary files a/docs/html/.doctrees/pylorax.doctree and b/docs/html/.doctrees/pylorax.doctree differ
diff --git a/docs/html/_modules/index.html b/docs/html/_modules/index.html
index 5298ca52..44a94cb3 100644
--- a/docs/html/_modules/index.html
+++ b/docs/html/_modules/index.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Overview: module code &mdash; Lorax 23.12 documentation</title>
+  <title>Overview: module code &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../index.html"/> 
+    <link rel="top" title="Lorax 24.1 documentation" href="../index.html"/> 
 
   
   <script src="_static/js/modernizr.min.js"></script>
@@ -195,7 +195,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax.html b/docs/html/_modules/pylorax.html
index ac196579..71854dce 100644
--- a/docs/html/_modules/pylorax.html
+++ b/docs/html/_modules/pylorax.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../index.html"/>
         <link rel="up" title="Module code" href="index.html"/> 
 
   
@@ -311,7 +311,8 @@
             <span class="n">add_templates</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
             <span class="n">add_template_vars</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
             <span class="n">add_arch_templates</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
-            <span class="n">add_arch_template_vars</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+            <span class="n">add_arch_template_vars</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
+            <span class="n">verify</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
 
         <span class="k">assert</span> <span class="bp">self</span><span class="o">.</span><span class="n">_configured</span>
 
@@ -444,6 +445,13 @@
         <span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;cleaning unneeded files&quot;</span><span class="p">)</span>
         <span class="n">rb</span><span class="o">.</span><span class="n">cleanup</span><span class="p">()</span>
 
+        <span class="k">if</span> <span class="n">verify</span><span class="p">:</span>
+            <span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;verifying the installroot&quot;</span><span class="p">)</span>
+            <span class="k">if</span> <span class="ow">not</span> <span class="n">rb</span><span class="o">.</span><span class="n">verify</span><span class="p">():</span>
+                <span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
+        <span class="k">else</span><span class="p">:</span>
+            <span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Skipping verify&quot;</span><span class="p">)</span>
+
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">:</span>
             <span class="n">rb</span><span class="o">.</span><span class="n">writepkgsizes</span><span class="p">(</span><span class="n">joinpaths</span><span class="p">(</span><span class="n">logdir</span><span class="p">,</span> <span class="s">&quot;final-pkgsizes.txt&quot;</span><span class="p">))</span>
 
@@ -598,7 +606,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/base.html b/docs/html/_modules/pylorax/base.html
index 8f57c893..b0c2844f 100644
--- a/docs/html/_modules/pylorax/base.html
+++ b/docs/html/_modules/pylorax/base.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.base &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.base &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -250,7 +250,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/buildstamp.html b/docs/html/_modules/pylorax/buildstamp.html
index cb582215..6666326f 100644
--- a/docs/html/_modules/pylorax/buildstamp.html
+++ b/docs/html/_modules/pylorax/buildstamp.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.buildstamp &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.buildstamp &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -244,7 +244,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/decorators.html b/docs/html/_modules/pylorax/decorators.html
index 07749a77..f576e7d5 100644
--- a/docs/html/_modules/pylorax/decorators.html
+++ b/docs/html/_modules/pylorax/decorators.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.decorators &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.decorators &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -216,7 +216,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/discinfo.html b/docs/html/_modules/pylorax/discinfo.html
index ccd43555..f5a51ce4 100644
--- a/docs/html/_modules/pylorax/discinfo.html
+++ b/docs/html/_modules/pylorax/discinfo.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.discinfo &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.discinfo &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -225,7 +225,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/dnfhelper.html b/docs/html/_modules/pylorax/dnfhelper.html
index 0dee77bf..ded06893 100644
--- a/docs/html/_modules/pylorax/dnfhelper.html
+++ b/docs/html/_modules/pylorax/dnfhelper.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.dnfhelper &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.dnfhelper &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -293,7 +293,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/executils.html b/docs/html/_modules/pylorax/executils.html
index 697be605..10ccca1c 100644
--- a/docs/html/_modules/pylorax/executils.html
+++ b/docs/html/_modules/pylorax/executils.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.executils &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.executils &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -177,8 +177,8 @@
 
 <span class="kn">import</span> <span class="nn">os</span>
 <span class="kn">import</span> <span class="nn">subprocess</span>
+<span class="kn">from</span> <span class="nn">subprocess</span> <span class="kn">import</span> <span class="n">TimeoutExpired</span>
 <span class="kn">import</span> <span class="nn">signal</span>
-<span class="kn">from</span> <span class="nn">time</span> <span class="kn">import</span> <span class="n">sleep</span>
 
 <span class="kn">import</span> <span class="nn">logging</span>
 <span class="n">log</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s">&quot;pylorax&quot;</span><span class="p">)</span>
@@ -233,6 +233,7 @@
 <span class="sd">        :param reset_lang: whether to set the locale of the child process to C</span>
 <span class="sd">        :param kwargs: Additional parameters to pass to subprocess.Popen</span>
 <span class="sd">        :return: A Popen object for the running command.</span>
+<span class="sd">        :keyword preexec_fn: A function to run before execution starts.</span>
 <span class="sd">    &quot;&quot;&quot;</span>
     <span class="k">if</span> <span class="n">env_prune</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
         <span class="n">env_prune</span> <span class="o">=</span> <span class="p">[]</span>
@@ -279,7 +280,8 @@
                             <span class="n">preexec_fn</span><span class="o">=</span><span class="n">preexec</span><span class="p">,</span> <span class="n">cwd</span><span class="o">=</span><span class="n">root</span><span class="p">,</span> <span class="n">env</span><span class="o">=</span><span class="n">env</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
 </div>
 <span class="k">def</span> <span class="nf">_run_program</span><span class="p">(</span><span class="n">argv</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="s">&#39;/&#39;</span><span class="p">,</span> <span class="n">stdin</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">stdout</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">env_prune</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">log_output</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
-        <span class="n">binary_output</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">filter_stderr</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">raise_err</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">callback</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+        <span class="n">binary_output</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">filter_stderr</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">raise_err</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">callback</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
+        <span class="n">env_add</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">reset_handlers</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">reset_lang</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
     <span class="sd">&quot;&quot;&quot; Run an external program, log the output and return it to the caller</span>
 
 <span class="sd">        :param argv: The command to run and argument</span>
@@ -292,6 +294,9 @@
 <span class="sd">        :param filter_stderr: whether to exclude the contents of stderr from the returned output</span>
 <span class="sd">        :param raise_err: whether to raise a CalledProcessError if the returncode is non-zero</span>
 <span class="sd">        :param callback: method to call while waiting for process to finish, passed Popen object</span>
+<span class="sd">        :param env_add: environment variables to add before execution</span>
+<span class="sd">        :param reset_handlers: whether to reset to SIG_DFL any signal handlers set to SIG_IGN</span>
+<span class="sd">        :param reset_lang: whether to set the locale of the child process to C</span>
 <span class="sd">        :return: The return code of the command and the output</span>
 <span class="sd">        :raises: OSError or CalledProcessError</span>
 <span class="sd">    &quot;&quot;&quot;</span>
@@ -302,13 +307,18 @@
             <span class="n">stderr</span> <span class="o">=</span> <span class="n">subprocess</span><span class="o">.</span><span class="n">STDOUT</span>
 
         <span class="n">proc</span> <span class="o">=</span> <span class="n">startProgram</span><span class="p">(</span><span class="n">argv</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="n">root</span><span class="p">,</span> <span class="n">stdin</span><span class="o">=</span><span class="n">stdin</span><span class="p">,</span> <span class="n">stdout</span><span class="o">=</span><span class="n">subprocess</span><span class="o">.</span><span class="n">PIPE</span><span class="p">,</span> <span class="n">stderr</span><span class="o">=</span><span class="n">stderr</span><span class="p">,</span>
-                            <span class="n">env_prune</span><span class="o">=</span><span class="n">env_prune</span><span class="p">,</span> <span class="n">universal_newlines</span><span class="o">=</span><span class="ow">not</span> <span class="n">binary_output</span><span class="p">)</span>
+                            <span class="n">env_prune</span><span class="o">=</span><span class="n">env_prune</span><span class="p">,</span> <span class="n">universal_newlines</span><span class="o">=</span><span class="ow">not</span> <span class="n">binary_output</span><span class="p">,</span>
+                            <span class="n">env_add</span><span class="o">=</span><span class="n">env_add</span><span class="p">,</span> <span class="n">reset_handlers</span><span class="o">=</span><span class="n">reset_handlers</span><span class="p">,</span> <span class="n">reset_lang</span><span class="o">=</span><span class="n">reset_lang</span><span class="p">)</span>
 
         <span class="k">if</span> <span class="n">callback</span><span class="p">:</span>
             <span class="k">while</span> <span class="n">callback</span><span class="p">(</span><span class="n">proc</span><span class="p">)</span> <span class="ow">and</span> <span class="n">proc</span><span class="o">.</span><span class="n">poll</span><span class="p">()</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
-                <span class="n">sleep</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
-
-        <span class="p">(</span><span class="n">output_string</span><span class="p">,</span> <span class="n">err_string</span><span class="p">)</span> <span class="o">=</span> <span class="n">proc</span><span class="o">.</span><span class="n">communicate</span><span class="p">()</span>
+                <span class="k">try</span><span class="p">:</span>
+                    <span class="p">(</span><span class="n">output_string</span><span class="p">,</span> <span class="n">err_string</span><span class="p">)</span> <span class="o">=</span> <span class="n">proc</span><span class="o">.</span><span class="n">communicate</span><span class="p">(</span><span class="n">timeout</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
+                    <span class="k">break</span>
+                <span class="k">except</span> <span class="n">TimeoutExpired</span><span class="p">:</span>
+                    <span class="k">pass</span>
+        <span class="k">else</span><span class="p">:</span>
+            <span class="p">(</span><span class="n">output_string</span><span class="p">,</span> <span class="n">err_string</span><span class="p">)</span> <span class="o">=</span> <span class="n">proc</span><span class="o">.</span><span class="n">communicate</span><span class="p">()</span>
         <span class="k">if</span> <span class="n">output_string</span><span class="p">:</span>
             <span class="k">if</span> <span class="n">binary_output</span><span class="p">:</span>
                 <span class="n">output_lines</span> <span class="o">=</span> <span class="p">[</span><span class="n">output_string</span><span class="p">]</span>
@@ -342,12 +352,14 @@
         <span class="n">program_log</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s">&quot;Return code: </span><span class="si">%d</span><span class="s">&quot;</span><span class="p">,</span> <span class="n">proc</span><span class="o">.</span><span class="n">returncode</span><span class="p">)</span>
 
     <span class="k">if</span> <span class="n">proc</span><span class="o">.</span><span class="n">returncode</span> <span class="ow">and</span> <span class="n">raise_err</span><span class="p">:</span>
-        <span class="k">raise</span> <span class="n">subprocess</span><span class="o">.</span><span class="n">CalledProcessError</span><span class="p">(</span><span class="n">proc</span><span class="o">.</span><span class="n">returncode</span><span class="p">,</span> <span class="n">argv</span><span class="p">)</span>
+        <span class="n">output</span> <span class="o">=</span> <span class="n">output_string</span> <span class="ow">or</span> <span class="s">&quot;&quot;</span> <span class="o">+</span> <span class="n">err_string</span> <span class="ow">or</span> <span class="s">&quot;&quot;</span>
+        <span class="k">raise</span> <span class="n">subprocess</span><span class="o">.</span><span class="n">CalledProcessError</span><span class="p">(</span><span class="n">proc</span><span class="o">.</span><span class="n">returncode</span><span class="p">,</span> <span class="n">argv</span><span class="p">,</span> <span class="n">output</span><span class="p">)</span>
 
     <span class="k">return</span> <span class="p">(</span><span class="n">proc</span><span class="o">.</span><span class="n">returncode</span><span class="p">,</span> <span class="n">output_string</span><span class="p">)</span>
 
 <div class="viewcode-block" id="execWithRedirect"><a class="viewcode-back" href="../../pylorax.html#pylorax.executils.execWithRedirect">[docs]</a><span class="k">def</span> <span class="nf">execWithRedirect</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="n">argv</span><span class="p">,</span> <span class="n">stdin</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">stdout</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="s">&#39;/&#39;</span><span class="p">,</span> <span class="n">env_prune</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
-                     <span class="n">log_output</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">binary_output</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">raise_err</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">callback</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+                     <span class="n">log_output</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">binary_output</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">raise_err</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">callback</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
+                     <span class="n">env_add</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">reset_handlers</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">reset_lang</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
     <span class="sd">&quot;&quot;&quot; Run an external program and redirect the output to a file.</span>
 
 <span class="sd">        :param command: The command to run</span>
@@ -360,14 +372,18 @@
 <span class="sd">        :param binary_output: whether to treat the output of command as binary data</span>
 <span class="sd">        :param raise_err: whether to raise a CalledProcessError if the returncode is non-zero</span>
 <span class="sd">        :param callback: method to call while waiting for process to finish, passed Popen object</span>
+<span class="sd">        :param env_add: environment variables to add before execution</span>
+<span class="sd">        :param reset_handlers: whether to reset to SIG_DFL any signal handlers set to SIG_IGN</span>
+<span class="sd">        :param reset_lang: whether to set the locale of the child process to C</span>
 <span class="sd">        :return: The return code of the command</span>
 <span class="sd">    &quot;&quot;&quot;</span>
     <span class="n">argv</span> <span class="o">=</span> <span class="p">[</span><span class="n">command</span><span class="p">]</span> <span class="o">+</span> <span class="nb">list</span><span class="p">(</span><span class="n">argv</span><span class="p">)</span>
     <span class="k">return</span> <span class="n">_run_program</span><span class="p">(</span><span class="n">argv</span><span class="p">,</span> <span class="n">stdin</span><span class="o">=</span><span class="n">stdin</span><span class="p">,</span> <span class="n">stdout</span><span class="o">=</span><span class="n">stdout</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="n">root</span><span class="p">,</span> <span class="n">env_prune</span><span class="o">=</span><span class="n">env_prune</span><span class="p">,</span>
-            <span class="n">log_output</span><span class="o">=</span><span class="n">log_output</span><span class="p">,</span> <span class="n">binary_output</span><span class="o">=</span><span class="n">binary_output</span><span class="p">,</span> <span class="n">raise_err</span><span class="o">=</span><span class="n">raise_err</span><span class="p">,</span> <span class="n">callback</span><span class="o">=</span><span class="n">callback</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
+            <span class="n">log_output</span><span class="o">=</span><span class="n">log_output</span><span class="p">,</span> <span class="n">binary_output</span><span class="o">=</span><span class="n">binary_output</span><span class="p">,</span> <span class="n">raise_err</span><span class="o">=</span><span class="n">raise_err</span><span class="p">,</span> <span class="n">callback</span><span class="o">=</span><span class="n">callback</span><span class="p">,</span>
+            <span class="n">env_add</span><span class="o">=</span><span class="n">env_add</span><span class="p">,</span> <span class="n">reset_handlers</span><span class="o">=</span><span class="n">reset_handlers</span><span class="p">,</span> <span class="n">reset_lang</span><span class="o">=</span><span class="n">reset_lang</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
 </div>
 <div class="viewcode-block" id="execWithCapture"><a class="viewcode-back" href="../../pylorax.html#pylorax.executils.execWithCapture">[docs]</a><span class="k">def</span> <span class="nf">execWithCapture</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="n">argv</span><span class="p">,</span> <span class="n">stdin</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="s">&#39;/&#39;</span><span class="p">,</span> <span class="n">log_output</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">filter_stderr</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span>
-                    <span class="n">raise_err</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">callback</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+                    <span class="n">raise_err</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">callback</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">env_add</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">reset_handlers</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">reset_lang</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
     <span class="sd">&quot;&quot;&quot; Run an external program and capture standard out and err.</span>
 
 <span class="sd">        :param command: The command to run</span>
@@ -376,12 +392,102 @@
 <span class="sd">        :param root: The directory to chroot to before running command.</span>
 <span class="sd">        :param log_output: Whether to log the output of command</span>
 <span class="sd">        :param filter_stderr: Whether stderr should be excluded from the returned output</span>
-<span class="sd">        :param raise_err: whether to raise a CalledProcessError if the returncode is non-zero</span>
+<span class="sd">        :param callback: method to call while waiting for process to finish, passed Popen object</span>
+<span class="sd">        :param env_add: environment variables to add before execution</span>
+<span class="sd">        :param reset_handlers: whether to reset to SIG_DFL any signal handlers set to SIG_IGN</span>
+<span class="sd">        :param reset_lang: whether to set the locale of the child process to C</span>
 <span class="sd">        :return: The output of the command</span>
 <span class="sd">    &quot;&quot;&quot;</span>
     <span class="n">argv</span> <span class="o">=</span> <span class="p">[</span><span class="n">command</span><span class="p">]</span> <span class="o">+</span> <span class="nb">list</span><span class="p">(</span><span class="n">argv</span><span class="p">)</span>
     <span class="k">return</span> <span class="n">_run_program</span><span class="p">(</span><span class="n">argv</span><span class="p">,</span> <span class="n">stdin</span><span class="o">=</span><span class="n">stdin</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="n">root</span><span class="p">,</span> <span class="n">log_output</span><span class="o">=</span><span class="n">log_output</span><span class="p">,</span> <span class="n">filter_stderr</span><span class="o">=</span><span class="n">filter_stderr</span><span class="p">,</span>
-                        <span class="n">raise_err</span><span class="o">=</span><span class="n">raise_err</span><span class="p">,</span> <span class="n">callback</span><span class="o">=</span><span class="n">callback</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
+                        <span class="n">raise_err</span><span class="o">=</span><span class="n">raise_err</span><span class="p">,</span> <span class="n">callback</span><span class="o">=</span><span class="n">callback</span><span class="p">,</span> <span class="n">env_add</span><span class="o">=</span><span class="n">env_add</span><span class="p">,</span>
+                        <span class="n">reset_handlers</span><span class="o">=</span><span class="n">reset_handlers</span><span class="p">,</span> <span class="n">reset_lang</span><span class="o">=</span><span class="n">reset_lang</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
+</div>
+<div class="viewcode-block" id="execReadlines"><a class="viewcode-back" href="../../pylorax.html#pylorax.executils.execReadlines">[docs]</a><span class="k">def</span> <span class="nf">execReadlines</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="n">argv</span><span class="p">,</span> <span class="n">stdin</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="s">&#39;/&#39;</span><span class="p">,</span> <span class="n">env_prune</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">filter_stderr</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span>
+                  <span class="n">callback</span><span class="o">=</span><span class="k">lambda</span> <span class="n">x</span><span class="p">:</span> <span class="bp">True</span><span class="p">,</span> <span class="n">env_add</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">reset_handlers</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">reset_lang</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot; Execute an external command and return the line output of the command</span>
+<span class="sd">        in real-time.</span>
+
+<span class="sd">        This method assumes that there is a reasonably low delay between the</span>
+<span class="sd">        end of output and the process exiting. If the child process closes</span>
+<span class="sd">        stdout and then keeps on truckin&#39; there will be problems.</span>
+
+<span class="sd">        NOTE/WARNING: UnicodeDecodeError will be raised if the output of the</span>
+<span class="sd">                      external command can&#39;t be decoded as UTF-8.</span>
+
+<span class="sd">        :param command: The command to run</span>
+<span class="sd">        :param argv: The argument list</span>
+<span class="sd">        :param stdin: The file object to read stdin from.</span>
+<span class="sd">        :param stdout: Optional file object to redirect stdout and stderr to.</span>
+<span class="sd">        :param root: The directory to chroot to before running command.</span>
+<span class="sd">        :param env_prune: environment variable to remove before execution</span>
+<span class="sd">        :param filter_stderr: Whether stderr should be excluded from the returned output</span>
+<span class="sd">        :param callback: method to call while waiting for process to finish, passed Popen object</span>
+<span class="sd">        :param env_add: environment variables to add before execution</span>
+<span class="sd">        :param reset_handlers: whether to reset to SIG_DFL any signal handlers set to SIG_IGN</span>
+<span class="sd">        :param reset_lang: whether to set the locale of the child process to C</span>
+<span class="sd">        :return: Iterator of the lines from the command</span>
+
+<span class="sd">        Output from the file is not logged to program.log</span>
+<span class="sd">        This returns an iterator with the lines from the command until it has finished</span>
+<span class="sd">    &quot;&quot;&quot;</span>
+
+    <span class="k">class</span> <span class="nc">ExecLineReader</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
+        <span class="sd">&quot;&quot;&quot;Iterator class for returning lines from a process and cleaning</span>
+<span class="sd">           up the process when the output is no longer needed.</span>
+<span class="sd">        &quot;&quot;&quot;</span>
+
+        <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">proc</span><span class="p">,</span> <span class="n">argv</span><span class="p">,</span> <span class="n">callback</span><span class="p">):</span>
+            <span class="bp">self</span><span class="o">.</span><span class="n">_proc</span> <span class="o">=</span> <span class="n">proc</span>
+            <span class="bp">self</span><span class="o">.</span><span class="n">_argv</span> <span class="o">=</span> <span class="n">argv</span>
+            <span class="bp">self</span><span class="o">.</span><span class="n">_callback</span> <span class="o">=</span> <span class="n">callback</span>
+
+        <span class="k">def</span> <span class="nf">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+            <span class="k">return</span> <span class="bp">self</span>
+
+        <span class="k">def</span> <span class="nf">__del__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+            <span class="c"># See if the process is still running</span>
+            <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_proc</span><span class="o">.</span><span class="n">poll</span><span class="p">()</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
+                <span class="c"># Stop the process and ignore any problems that might arise</span>
+                <span class="k">try</span><span class="p">:</span>
+                    <span class="bp">self</span><span class="o">.</span><span class="n">_proc</span><span class="o">.</span><span class="n">terminate</span><span class="p">()</span>
+                <span class="k">except</span> <span class="ne">OSError</span><span class="p">:</span>
+                    <span class="k">pass</span>
+
+        <span class="k">def</span> <span class="nf">__next__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+            <span class="c"># Read the next line, blocking if a line is not yet available</span>
+            <span class="n">line</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_proc</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">readline</span><span class="p">()</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s">&quot;utf-8&quot;</span><span class="p">)</span>
+            <span class="k">if</span> <span class="n">line</span> <span class="o">==</span> <span class="s">&#39;&#39;</span> <span class="ow">or</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_callback</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_proc</span><span class="p">):</span>
+                <span class="c"># Output finished, wait for the process to end</span>
+                <span class="bp">self</span><span class="o">.</span><span class="n">_proc</span><span class="o">.</span><span class="n">communicate</span><span class="p">()</span>
+
+                <span class="c"># Check for successful exit</span>
+                <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_proc</span><span class="o">.</span><span class="n">returncode</span> <span class="o">&lt;</span> <span class="mi">0</span><span class="p">:</span>
+                    <span class="k">raise</span> <span class="ne">OSError</span><span class="p">(</span><span class="s">&quot;process &#39;</span><span class="si">%s</span><span class="s">&#39; was killed by signal </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span>
+                            <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_argv</span><span class="p">,</span> <span class="o">-</span><span class="bp">self</span><span class="o">.</span><span class="n">_proc</span><span class="o">.</span><span class="n">returncode</span><span class="p">))</span>
+                <span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">_proc</span><span class="o">.</span><span class="n">returncode</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
+                    <span class="k">raise</span> <span class="ne">OSError</span><span class="p">(</span><span class="s">&quot;process &#39;</span><span class="si">%s</span><span class="s">&#39; exited with status </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span>
+                            <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_argv</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_proc</span><span class="o">.</span><span class="n">returncode</span><span class="p">))</span>
+                <span class="k">raise</span> <span class="ne">StopIteration</span>
+
+            <span class="k">return</span> <span class="n">line</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span>
+
+    <span class="n">argv</span> <span class="o">=</span> <span class="p">[</span><span class="n">command</span><span class="p">]</span> <span class="o">+</span> <span class="n">argv</span>
+
+    <span class="k">if</span> <span class="n">filter_stderr</span><span class="p">:</span>
+        <span class="n">stderr</span> <span class="o">=</span> <span class="n">subprocess</span><span class="o">.</span><span class="n">DEVNULL</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="n">stderr</span> <span class="o">=</span> <span class="n">subprocess</span><span class="o">.</span><span class="n">STDOUT</span>
+
+    <span class="k">try</span><span class="p">:</span>
+        <span class="n">proc</span> <span class="o">=</span> <span class="n">startProgram</span><span class="p">(</span><span class="n">argv</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="n">root</span><span class="p">,</span> <span class="n">stdin</span><span class="o">=</span><span class="n">stdin</span><span class="p">,</span> <span class="n">stdout</span><span class="o">=</span><span class="n">subprocess</span><span class="o">.</span><span class="n">PIPE</span><span class="p">,</span> <span class="n">stderr</span><span class="o">=</span><span class="n">stderr</span><span class="p">,</span> <span class="n">bufsize</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span>
+                            <span class="n">env_prune</span><span class="o">=</span><span class="n">env_prune</span><span class="p">,</span> <span class="n">env_add</span><span class="o">=</span><span class="n">env_add</span><span class="p">,</span> <span class="n">reset_handlers</span><span class="o">=</span><span class="n">reset_handlers</span><span class="p">,</span> <span class="n">reset_lang</span><span class="o">=</span><span class="n">reset_lang</span><span class="p">)</span>
+    <span class="k">except</span> <span class="ne">OSError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
+        <span class="k">with</span> <span class="n">program_log_lock</span><span class="p">:</span>
+            <span class="n">program_log</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s">&quot;Error running </span><span class="si">%s</span><span class="s">: </span><span class="si">%s</span><span class="s">&quot;</span><span class="p">,</span> <span class="n">argv</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">e</span><span class="o">.</span><span class="n">strerror</span><span class="p">)</span>
+        <span class="k">raise</span>
+
+    <span class="k">return</span> <span class="n">ExecLineReader</span><span class="p">(</span><span class="n">proc</span><span class="p">,</span> <span class="n">argv</span><span class="p">,</span> <span class="n">callback</span><span class="p">)</span>
 </div>
 <div class="viewcode-block" id="runcmd"><a class="viewcode-back" href="../../pylorax.html#pylorax.executils.runcmd">[docs]</a><span class="k">def</span> <span class="nf">runcmd</span><span class="p">(</span><span class="n">cmd</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
     <span class="sd">&quot;&quot;&quot; run execWithRedirect with raise_err=True</span>
@@ -425,7 +531,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/imgutils.html b/docs/html/_modules/pylorax/imgutils.html
index d002b73e..fe15036d 100644
--- a/docs/html/_modules/pylorax/imgutils.html
+++ b/docs/html/_modules/pylorax/imgutils.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.imgutils &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.imgutils &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -603,7 +603,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/ltmpl.html b/docs/html/_modules/pylorax/ltmpl.html
index 2544585b..6de0b25a 100644
--- a/docs/html/_modules/pylorax/ltmpl.html
+++ b/docs/html/_modules/pylorax/ltmpl.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.ltmpl &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.ltmpl &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -900,7 +900,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/monitor.html b/docs/html/_modules/pylorax/monitor.html
index 97895ff9..f29bbf75 100644
--- a/docs/html/_modules/pylorax/monitor.html
+++ b/docs/html/_modules/pylorax/monitor.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.monitor &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.monitor &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -377,7 +377,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/mount.html b/docs/html/_modules/pylorax/mount.html
index 7862c3b3..698be5a6 100644
--- a/docs/html/_modules/pylorax/mount.html
+++ b/docs/html/_modules/pylorax/mount.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.mount &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.mount &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -282,7 +282,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/sysutils.html b/docs/html/_modules/pylorax/sysutils.html
index 306b37cb..e2986b97 100644
--- a/docs/html/_modules/pylorax/sysutils.html
+++ b/docs/html/_modules/pylorax/sysutils.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.sysutils &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.sysutils &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -294,7 +294,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/treebuilder.html b/docs/html/_modules/pylorax/treebuilder.html
index d3ea896c..e05a500f 100644
--- a/docs/html/_modules/pylorax/treebuilder.html
+++ b/docs/html/_modules/pylorax/treebuilder.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.treebuilder &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.treebuilder &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -180,12 +180,14 @@
 <span class="kn">import</span> <span class="nn">os</span><span class="o">,</span> <span class="nn">re</span>
 <span class="kn">from</span> <span class="nn">os.path</span> <span class="kn">import</span> <span class="n">basename</span>
 <span class="kn">from</span> <span class="nn">shutil</span> <span class="kn">import</span> <span class="n">copytree</span><span class="p">,</span> <span class="n">copy2</span>
+<span class="kn">from</span> <span class="nn">pathlib</span> <span class="kn">import</span> <span class="n">Path</span>
+<span class="kn">import</span> <span class="nn">itertools</span>
 
 <span class="kn">from</span> <span class="nn">pylorax.sysutils</span> <span class="kn">import</span> <span class="n">joinpaths</span><span class="p">,</span> <span class="n">remove</span>
 <span class="kn">from</span> <span class="nn">pylorax.base</span> <span class="kn">import</span> <span class="n">DataHolder</span>
 <span class="kn">from</span> <span class="nn">pylorax.ltmpl</span> <span class="kn">import</span> <span class="n">LoraxTemplateRunner</span>
 <span class="kn">import</span> <span class="nn">pylorax.imgutils</span> <span class="kn">as</span> <span class="nn">imgutils</span>
-<span class="kn">from</span> <span class="nn">pylorax.executils</span> <span class="kn">import</span> <span class="n">runcmd</span><span class="p">,</span> <span class="n">runcmd_output</span>
+<span class="kn">from</span> <span class="nn">pylorax.executils</span> <span class="kn">import</span> <span class="n">runcmd</span><span class="p">,</span> <span class="n">runcmd_output</span><span class="p">,</span> <span class="n">execWithCapture</span>
 
 <span class="n">templatemap</span> <span class="o">=</span> <span class="p">{</span>
     <span class="s">&#39;i386&#39;</span><span class="p">:</span>    <span class="s">&#39;x86.tmpl&#39;</span><span class="p">,</span>
@@ -300,6 +302,54 @@
         <span class="sd">&#39;&#39;&#39;Remove unneeded packages and files with runtime-cleanup.tmpl&#39;&#39;&#39;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_runner</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="s">&quot;runtime-cleanup.tmpl&quot;</span><span class="p">)</span>
 </div>
+<div class="viewcode-block" id="RuntimeBuilder.verify"><a class="viewcode-back" href="../../pylorax.html#pylorax.treebuilder.RuntimeBuilder.verify">[docs]</a>    <span class="k">def</span> <span class="nf">verify</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
+        <span class="sd">&#39;&#39;&#39;Ensure that contents of the installroot can run&#39;&#39;&#39;</span>
+        <span class="n">status</span> <span class="o">=</span> <span class="bp">True</span>
+
+        <span class="n">ELF_MAGIC</span> <span class="o">=</span> <span class="n">b</span><span class="s">&#39;</span><span class="se">\x7f</span><span class="s">ELF&#39;</span>
+
+        <span class="c"># Iterate over all files in /usr/bin and /usr/sbin</span>
+        <span class="c"># For ELF files, gather them into a list and we&#39;ll check them all at</span>
+        <span class="c"># the end. For files with a #!, check them as we go</span>
+        <span class="n">elf_files</span> <span class="o">=</span> <span class="p">[]</span>
+        <span class="n">usr_bin</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">vars</span><span class="o">.</span><span class="n">root</span> <span class="o">+</span> <span class="s">&#39;/usr/bin&#39;</span><span class="p">)</span>
+        <span class="n">usr_sbin</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">vars</span><span class="o">.</span><span class="n">root</span> <span class="o">+</span> <span class="s">&#39;/usr/sbin&#39;</span><span class="p">)</span>
+        <span class="k">for</span> <span class="n">path</span> <span class="ow">in</span> <span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">x</span><span class="p">)</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="n">usr_bin</span><span class="o">.</span><span class="n">iterdir</span><span class="p">(),</span> <span class="n">usr_sbin</span><span class="o">.</span><span class="n">iterdir</span><span class="p">())</span> \
+                     <span class="k">if</span> <span class="n">x</span><span class="o">.</span><span class="n">is_file</span><span class="p">()):</span>
+            <span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="s">&quot;rb&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">f</span><span class="p">:</span>
+                <span class="n">magic</span> <span class="o">=</span> <span class="n">f</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">)</span>
+                <span class="k">if</span> <span class="n">magic</span> <span class="o">==</span> <span class="n">ELF_MAGIC</span><span class="p">:</span>
+                    <span class="c"># Save the path, minus the chroot prefix</span>
+                    <span class="n">elf_files</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">path</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">vars</span><span class="o">.</span><span class="n">root</span><span class="p">):])</span>
+                <span class="k">elif</span> <span class="n">magic</span><span class="p">[:</span><span class="mi">2</span><span class="p">]</span> <span class="o">==</span> <span class="n">b</span><span class="s">&#39;#!&#39;</span><span class="p">:</span>
+                    <span class="c"># Reopen the file as text and read the first line.</span>
+                    <span class="c"># Open as latin-1 so that stray 8-bit characters don&#39;t make</span>
+                    <span class="c"># things blow up. We only really care about ASCII parts.</span>
+                    <span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="s">&quot;rt&quot;</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s">&quot;latin-1&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">f_text</span><span class="p">:</span>
+                        <span class="c"># Remove the #!, split on space, and take the first part</span>
+                        <span class="n">shabang</span> <span class="o">=</span> <span class="n">f_text</span><span class="o">.</span><span class="n">readline</span><span class="p">()[</span><span class="mi">2</span><span class="p">:]</span><span class="o">.</span><span class="n">split</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span>
+
+                    <span class="c"># Does the path exist?</span>
+                    <span class="k">if</span> <span class="ow">not</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">vars</span><span class="o">.</span><span class="n">root</span> <span class="o">+</span> <span class="n">shabang</span><span class="p">):</span>
+                        <span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s">&#39;</span><span class="si">%s</span><span class="s">, needed by </span><span class="si">%s</span><span class="s">, does not exist&#39;</span><span class="p">,</span> <span class="n">shabang</span><span class="p">,</span> <span class="n">path</span><span class="p">)</span>
+                        <span class="n">status</span> <span class="o">=</span> <span class="bp">False</span>
+
+        <span class="c"># Now, run ldd on all the ELF files</span>
+        <span class="c"># Just run ldd once on everything so it isn&#39;t logged a million times.</span>
+        <span class="c"># At least one thing in the list isn&#39;t going to be a dynamic executable,</span>
+        <span class="c"># so use execWithCapture to ignore the exit code.</span>
+        <span class="n">filename</span> <span class="o">=</span> <span class="s">&#39;&#39;</span>
+        <span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">execWithCapture</span><span class="p">(</span><span class="s">&#39;ldd&#39;</span><span class="p">,</span> <span class="n">elf_files</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">vars</span><span class="o">.</span><span class="n">root</span><span class="p">,</span>
+                <span class="n">log_output</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">filter_stderr</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">&#39;</span><span class="se">\n</span><span class="s">&#39;</span><span class="p">):</span>
+            <span class="k">if</span> <span class="n">line</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">line</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">isspace</span><span class="p">():</span>
+                <span class="c"># New filename header, strip the : at the end and save</span>
+                <span class="n">filename</span> <span class="o">=</span> <span class="n">line</span><span class="p">[:</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
+            <span class="k">elif</span> <span class="s">&#39;not found&#39;</span> <span class="ow">in</span> <span class="n">line</span><span class="p">:</span>
+                <span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s">&#39;</span><span class="si">%s</span><span class="s">, needed by </span><span class="si">%s</span><span class="s">, not found&#39;</span><span class="p">,</span> <span class="n">line</span><span class="o">.</span><span class="n">split</span><span class="p">()[</span><span class="mi">0</span><span class="p">],</span> <span class="n">filename</span><span class="p">)</span>
+                <span class="n">status</span> <span class="o">=</span> <span class="bp">False</span>
+
+        <span class="k">return</span> <span class="n">status</span>
+</div>
 <div class="viewcode-block" id="RuntimeBuilder.writepkgsizes"><a class="viewcode-back" href="../../pylorax.html#pylorax.treebuilder.RuntimeBuilder.writepkgsizes">[docs]</a>    <span class="k">def</span> <span class="nf">writepkgsizes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pkgsizefile</span><span class="p">):</span>
         <span class="sd">&#39;&#39;&#39;debugging data: write a big list of pkg sizes&#39;&#39;&#39;</span>
         <span class="n">fobj</span> <span class="o">=</span> <span class="nb">open</span><span class="p">(</span><span class="n">pkgsizefile</span><span class="p">,</span> <span class="s">&quot;w&quot;</span><span class="p">)</span>
@@ -525,7 +575,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_modules/pylorax/treeinfo.html b/docs/html/_modules/pylorax/treeinfo.html
index f601e6be..c1937054 100644
--- a/docs/html/_modules/pylorax/treeinfo.html
+++ b/docs/html/_modules/pylorax/treeinfo.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax.treeinfo &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax.treeinfo &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="../../index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="../../index.html"/>
         <link rel="up" title="pylorax" href="../pylorax.html"/> 
 
   
@@ -243,7 +243,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/_static/jquery.js b/docs/html/_static/jquery.js
index 83589daa..38837795 100644
--- a/docs/html/_static/jquery.js
+++ b/docs/html/_static/jquery.js
@@ -1,2 +1,2 @@
-/*! jQuery v1.8.3 jquery.com | jquery.org/license */
+/*! jQuery v1.8.3 jquery.com | jquery.org/license */
 (function(e,t){function _(e){var t=M[e]={};return v.each(e.split(y),function(e,n){t[n]=!0}),t}function H(e,n,r){if(r===t&&e.nodeType===1){var i="data-"+n.replace(P,"-$1").toLowerCase();r=e.getAttribute(i);if(typeof r=="string"){try{r=r==="true"?!0:r==="false"?!1:r==="null"?null:+r+""===r?+r:D.test(r)?v.parseJSON(r):r}catch(s){}v.data(e,n,r)}else r=t}return r}function B(e){var t;for(t in e){if(t==="data"&&v.isEmptyObject(e[t]))continue;if(t!=="toJSON")return!1}return!0}function et(){return!1}function tt(){return!0}function ut(e){return!e||!e.parentNode||e.parentNode.nodeType===11}function at(e,t){do e=e[t];while(e&&e.nodeType!==1);return e}function ft(e,t,n){t=t||0;if(v.isFunction(t))return v.grep(e,function(e,r){var i=!!t.call(e,r,e);return i===n});if(t.nodeType)return v.grep(e,function(e,r){return e===t===n});if(typeof t=="string"){var r=v.grep(e,function(e){return e.nodeType===1});if(it.test(t))return v.filter(t,r,!n);t=v.filter(t,r)}return v.grep(e,function(e,r){return 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diff --git a/docs/html/genindex.html b/docs/html/genindex.html
index 36c2d05b..4a77bb75 100644
--- a/docs/html/genindex.html
+++ b/docs/html/genindex.html
@@ -9,7 +9,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Index &mdash; Lorax 23.12 documentation</title>
+  <title>Index &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -31,7 +31,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="index.html"/> 
+    <link rel="top" title="Lorax 24.1 documentation" href="index.html"/> 
 
   
   <script src="_static/js/modernizr.min.js"></script>
@@ -172,6 +172,7 @@
  | <a href="#S"><strong>S</strong></a>
  | <a href="#T"><strong>T</strong></a>
  | <a href="#U"><strong>U</strong></a>
+ | <a href="#V"><strong>V</strong></a>
  | <a href="#W"><strong>W</strong></a>
  
 </div>
@@ -336,10 +337,14 @@
   <dt><a href="pylorax.html#pylorax.dnfhelper.LoraxRpmCallback.event">event() (pylorax.dnfhelper.LoraxRpmCallback method)</a>
   </dt>
 
+      
+  <dt><a href="pylorax.html#pylorax.executils.ExecProduct">ExecProduct (class in pylorax.executils)</a>
+  </dt>
+
   </dl></td>
   <td style="width: 33%" valign="top"><dl>
       
-  <dt><a href="pylorax.html#pylorax.executils.ExecProduct">ExecProduct (class in pylorax.executils)</a>
+  <dt><a href="pylorax.html#pylorax.executils.execReadlines">execReadlines() (in module pylorax.executils)</a>
   </dt>
 
       
@@ -933,6 +938,16 @@
   </dl></td>
 </tr></table>
 
+<h2 id="V">V</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="pylorax.html#pylorax.treebuilder.RuntimeBuilder.verify">verify() (pylorax.treebuilder.RuntimeBuilder method)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
 <h2 id="W">W</h2>
 <table style="width: 100%" class="indextable genindextable"><tr>
   <td style="width: 33%" valign="top"><dl>
@@ -994,7 +1009,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/index.html b/docs/html/index.html
index 2fcbd71b..dbd8aa4c 100644
--- a/docs/html/index.html
+++ b/docs/html/index.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Welcome to Lorax’s documentation! &mdash; Lorax 23.12 documentation</title>
+  <title>Welcome to Lorax’s documentation! &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="#"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="#"/>
         <link rel="next" title="Introduction to Lorax" href="intro.html"/> 
 
   
@@ -212,7 +212,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/intro.html b/docs/html/intro.html
index f4d62589..03baad4f 100644
--- a/docs/html/intro.html
+++ b/docs/html/intro.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Introduction to Lorax &mdash; Lorax 23.12 documentation</title>
+  <title>Introduction to Lorax &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="index.html"/>
         <link rel="next" title="lorax" href="lorax.html"/>
         <link rel="prev" title="Welcome to Lorax’s documentation!" href="index.html"/> 
 
@@ -244,7 +244,7 @@ upd-instroot and mk-images* scripts.</p>
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/livemedia-creator.html b/docs/html/livemedia-creator.html
index b39e93b4..c6d69331 100644
--- a/docs/html/livemedia-creator.html
+++ b/docs/html/livemedia-creator.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>livemedia-creator &mdash; Lorax 23.12 documentation</title>
+  <title>livemedia-creator &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="index.html"/>
         <link rel="next" title="Product and Updates Images" href="product-images.html"/>
         <link rel="prev" title="lorax" href="lorax.html"/> 
 
@@ -623,7 +623,7 @@ report bugs against the lorax component.</p>
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/lorax.html b/docs/html/lorax.html
index b9c61149..ccb18c59 100644
--- a/docs/html/lorax.html
+++ b/docs/html/lorax.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>lorax &mdash; Lorax 23.12 documentation</title>
+  <title>lorax &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="index.html"/>
         <link rel="next" title="livemedia-creator" href="livemedia-creator.html"/>
         <link rel="prev" title="Introduction to Lorax" href="intro.html"/> 
 
@@ -197,7 +197,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/modules.html b/docs/html/modules.html
index b1603356..87c5d2be 100644
--- a/docs/html/modules.html
+++ b/docs/html/modules.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="index.html"/>
         <link rel="next" title="pylorax package" href="pylorax.html"/>
         <link rel="prev" title="Product and Updates Images" href="product-images.html"/> 
 
@@ -219,7 +219,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/objects.inv b/docs/html/objects.inv
index 68ead3af..4554d95b 100644
Binary files a/docs/html/objects.inv and b/docs/html/objects.inv differ
diff --git a/docs/html/product-images.html b/docs/html/product-images.html
index 23663e36..619eb1e3 100644
--- a/docs/html/product-images.html
+++ b/docs/html/product-images.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Product and Updates Images &mdash; Lorax 23.12 documentation</title>
+  <title>Product and Updates Images &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="index.html"/>
         <link rel="next" title="pylorax" href="modules.html"/>
         <link rel="prev" title="livemedia-creator" href="livemedia-creator.html"/> 
 
@@ -213,7 +213,7 @@ command or the installpkgs paramater of <a class="reference internal" href="pylo
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/py-modindex.html b/docs/html/py-modindex.html
index ac3bc387..27a07b2e 100644
--- a/docs/html/py-modindex.html
+++ b/docs/html/py-modindex.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Python Module Index &mdash; Lorax 23.12 documentation</title>
+  <title>Python Module Index &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="index.html"/>
  
 
 
@@ -271,7 +271,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/pylorax.html b/docs/html/pylorax.html
index bc5c240f..06bb3e09 100644
--- a/docs/html/pylorax.html
+++ b/docs/html/pylorax.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>pylorax package &mdash; Lorax 23.12 documentation</title>
+  <title>pylorax package &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="index.html"/>
+    <link rel="top" title="Lorax 24.1 documentation" href="index.html"/>
         <link rel="up" title="pylorax" href="modules.html"/>
         <link rel="prev" title="pylorax" href="modules.html"/> 
 
@@ -289,9 +289,49 @@
 <tt class="descclassname">pylorax.executils.</tt><tt class="descname">augmentEnv</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/pylorax/executils.html#augmentEnv"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylorax.executils.augmentEnv" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
+<dl class="function">
+<dt id="pylorax.executils.execReadlines">
+<tt class="descclassname">pylorax.executils.</tt><tt class="descname">execReadlines</tt><big>(</big><em>command</em>, <em>argv</em>, <em>stdin=None</em>, <em>root='/'</em>, <em>env_prune=None</em>, <em>filter_stderr=False</em>, <em>callback=&lt;function &lt;lambda&gt; at 0x7f21026ac048&gt;</em>, <em>env_add=None</em>, <em>reset_handlers=True</em>, <em>reset_lang=True</em><big>)</big><a class="reference internal" href="_modules/pylorax/executils.html#execReadlines"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylorax.executils.execReadlines" title="Permalink to this definition">¶</a></dt>
+<dd><p>Execute an external command and return the line output of the command
+in real-time.</p>
+<p>This method assumes that there is a reasonably low delay between the
+end of output and the process exiting. If the child process closes
+stdout and then keeps on truckin&#8217; there will be problems.</p>
+<dl class="docutils">
+<dt>NOTE/WARNING: UnicodeDecodeError will be raised if the output of the</dt>
+<dd>external command can&#8217;t be decoded as UTF-8.</dd>
+</dl>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>command</strong> &#8211; The command to run</li>
+<li><strong>argv</strong> &#8211; The argument list</li>
+<li><strong>stdin</strong> &#8211; The file object to read stdin from.</li>
+<li><strong>stdout</strong> &#8211; Optional file object to redirect stdout and stderr to.</li>
+<li><strong>root</strong> &#8211; The directory to chroot to before running command.</li>
+<li><strong>env_prune</strong> &#8211; environment variable to remove before execution</li>
+<li><strong>filter_stderr</strong> &#8211; Whether stderr should be excluded from the returned output</li>
+<li><strong>callback</strong> &#8211; method to call while waiting for process to finish, passed Popen object</li>
+<li><strong>env_add</strong> &#8211; environment variables to add before execution</li>
+<li><strong>reset_handlers</strong> &#8211; whether to reset to SIG_DFL any signal handlers set to SIG_IGN</li>
+<li><strong>reset_lang</strong> &#8211; whether to set the locale of the child process to C</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">Iterator of the lines from the command</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Output from the file is not logged to program.log
+This returns an iterator with the lines from the command until it has finished</p>
+</dd></dl>
+
 <dl class="function">
 <dt id="pylorax.executils.execWithCapture">
-<tt class="descclassname">pylorax.executils.</tt><tt class="descname">execWithCapture</tt><big>(</big><em>command</em>, <em>argv</em>, <em>stdin=None</em>, <em>root='/'</em>, <em>log_output=True</em>, <em>filter_stderr=False</em>, <em>raise_err=False</em>, <em>callback=None</em><big>)</big><a class="reference internal" href="_modules/pylorax/executils.html#execWithCapture"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylorax.executils.execWithCapture" title="Permalink to this definition">¶</a></dt>
+<tt class="descclassname">pylorax.executils.</tt><tt class="descname">execWithCapture</tt><big>(</big><em>command</em>, <em>argv</em>, <em>stdin=None</em>, <em>root='/'</em>, <em>log_output=True</em>, <em>filter_stderr=False</em>, <em>raise_err=False</em>, <em>callback=None</em>, <em>env_add=None</em>, <em>reset_handlers=True</em>, <em>reset_lang=True</em><big>)</big><a class="reference internal" href="_modules/pylorax/executils.html#execWithCapture"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylorax.executils.execWithCapture" title="Permalink to this definition">¶</a></dt>
 <dd><p>Run an external program and capture standard out and err.</p>
 <table class="docutils field-list" frame="void" rules="none">
 <col class="field-name" />
@@ -304,7 +344,10 @@
 <li><strong>root</strong> &#8211; The directory to chroot to before running command.</li>
 <li><strong>log_output</strong> &#8211; Whether to log the output of command</li>
 <li><strong>filter_stderr</strong> &#8211; Whether stderr should be excluded from the returned output</li>
-<li><strong>raise_err</strong> &#8211; whether to raise a CalledProcessError if the returncode is non-zero</li>
+<li><strong>callback</strong> &#8211; method to call while waiting for process to finish, passed Popen object</li>
+<li><strong>env_add</strong> &#8211; environment variables to add before execution</li>
+<li><strong>reset_handlers</strong> &#8211; whether to reset to SIG_DFL any signal handlers set to SIG_IGN</li>
+<li><strong>reset_lang</strong> &#8211; whether to set the locale of the child process to C</li>
 </ul>
 </td>
 </tr>
@@ -317,7 +360,7 @@
 
 <dl class="function">
 <dt id="pylorax.executils.execWithRedirect">
-<tt class="descclassname">pylorax.executils.</tt><tt class="descname">execWithRedirect</tt><big>(</big><em>command</em>, <em>argv</em>, <em>stdin=None</em>, <em>stdout=None</em>, <em>root='/'</em>, <em>env_prune=None</em>, <em>log_output=True</em>, <em>binary_output=False</em>, <em>raise_err=False</em>, <em>callback=None</em><big>)</big><a class="reference internal" href="_modules/pylorax/executils.html#execWithRedirect"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylorax.executils.execWithRedirect" title="Permalink to this definition">¶</a></dt>
+<tt class="descclassname">pylorax.executils.</tt><tt class="descname">execWithRedirect</tt><big>(</big><em>command</em>, <em>argv</em>, <em>stdin=None</em>, <em>stdout=None</em>, <em>root='/'</em>, <em>env_prune=None</em>, <em>log_output=True</em>, <em>binary_output=False</em>, <em>raise_err=False</em>, <em>callback=None</em>, <em>env_add=None</em>, <em>reset_handlers=True</em>, <em>reset_lang=True</em><big>)</big><a class="reference internal" href="_modules/pylorax/executils.html#execWithRedirect"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylorax.executils.execWithRedirect" title="Permalink to this definition">¶</a></dt>
 <dd><p>Run an external program and redirect the output to a file.</p>
 <table class="docutils field-list" frame="void" rules="none">
 <col class="field-name" />
@@ -334,6 +377,9 @@
 <li><strong>binary_output</strong> &#8211; whether to treat the output of command as binary data</li>
 <li><strong>raise_err</strong> &#8211; whether to raise a CalledProcessError if the returncode is non-zero</li>
 <li><strong>callback</strong> &#8211; method to call while waiting for process to finish, passed Popen object</li>
+<li><strong>env_add</strong> &#8211; environment variables to add before execution</li>
+<li><strong>reset_handlers</strong> &#8211; whether to reset to SIG_DFL any signal handlers set to SIG_IGN</li>
+<li><strong>reset_lang</strong> &#8211; whether to set the locale of the child process to C</li>
 </ul>
 </td>
 </tr>
@@ -400,6 +446,7 @@ last.</p>
 <li><strong>reset_handlers</strong> &#8211; whether to reset to SIG_DFL any signal handlers set to SIG_IGN</li>
 <li><strong>reset_lang</strong> &#8211; whether to set the locale of the child process to C</li>
 <li><strong>kwargs</strong> &#8211; Additional parameters to pass to subprocess.Popen</li>
+<li><strong>preexec_fn</strong> &#8211; A function to run before execution starts.</li>
 </ul>
 </td>
 </tr>
@@ -1242,6 +1289,12 @@ iso&#8217;s label.</p>
 <dd><p>Do some post-install setup work with runtime-postinstall.tmpl</p>
 </dd></dl>
 
+<dl class="method">
+<dt id="pylorax.treebuilder.RuntimeBuilder.verify">
+<tt class="descname">verify</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/pylorax/treebuilder.html#RuntimeBuilder.verify"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylorax.treebuilder.RuntimeBuilder.verify" title="Permalink to this definition">¶</a></dt>
+<dd><p>Ensure that contents of the installroot can run</p>
+</dd></dl>
+
 <dl class="method">
 <dt id="pylorax.treebuilder.RuntimeBuilder.writepkglists">
 <tt class="descname">writepkglists</tt><big>(</big><em>pkglistdir</em><big>)</big><a class="reference internal" href="_modules/pylorax/treebuilder.html#RuntimeBuilder.writepkglists"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylorax.treebuilder.RuntimeBuilder.writepkglists" title="Permalink to this definition">¶</a></dt>
@@ -1366,7 +1419,7 @@ image is built with the filename &#8220;${prefix}-${kernel.version}.img&#8221;</
 <dd><p>Bases: <a class="reference internal" href="#pylorax.base.DataHolder" title="pylorax.base.DataHolder"><tt class="xref py py-class docutils literal"><span class="pre">pylorax.base.DataHolder</span></tt></a></p>
 <dl class="attribute">
 <dt id="pylorax.ArchData.bcj_arch">
-<tt class="descname">bcj_arch</tt><em class="property"> = {'ppc64': 'powerpc', 'arm': 'arm', 'x86_64': 'x86', 'ppc64le': 'powerpc', 'ppc': 'powerpc', 'armhfp': 'arm', 'i386': 'x86'}</em><a class="headerlink" href="#pylorax.ArchData.bcj_arch" title="Permalink to this definition">¶</a></dt>
+<tt class="descname">bcj_arch</tt><em class="property"> = {'i386': 'x86', 'arm': 'arm', 'ppc64': 'powerpc', 'ppc': 'powerpc', 'armhfp': 'arm', 'x86_64': 'x86', 'ppc64le': 'powerpc'}</em><a class="headerlink" href="#pylorax.ArchData.bcj_arch" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 <dl class="attribute">
@@ -1397,7 +1450,7 @@ image is built with the filename &#8220;${prefix}-${kernel.version}.img&#8221;</
 
 <dl class="method">
 <dt id="pylorax.Lorax.run">
-<tt class="descname">run</tt><big>(</big><em>dbo</em>, <em>product</em>, <em>version</em>, <em>release</em>, <em>variant=''</em>, <em>bugurl=''</em>, <em>isfinal=False</em>, <em>workdir=None</em>, <em>outputdir=None</em>, <em>buildarch=None</em>, <em>volid=None</em>, <em>domacboot=True</em>, <em>doupgrade=True</em>, <em>remove_temp=False</em>, <em>installpkgs=None</em>, <em>size=2</em>, <em>add_templates=None</em>, <em>add_template_vars=None</em>, <em>add_arch_templates=None</em>, <em>add_arch_template_vars=None</em><big>)</big><a class="reference internal" href="_modules/pylorax.html#Lorax.run"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylorax.Lorax.run" title="Permalink to this definition">¶</a></dt>
+<tt class="descname">run</tt><big>(</big><em>dbo</em>, <em>product</em>, <em>version</em>, <em>release</em>, <em>variant=''</em>, <em>bugurl=''</em>, <em>isfinal=False</em>, <em>workdir=None</em>, <em>outputdir=None</em>, <em>buildarch=None</em>, <em>volid=None</em>, <em>domacboot=True</em>, <em>doupgrade=True</em>, <em>remove_temp=False</em>, <em>installpkgs=None</em>, <em>size=2</em>, <em>add_templates=None</em>, <em>add_template_vars=None</em>, <em>add_arch_templates=None</em>, <em>add_arch_template_vars=None</em>, <em>verify=True</em><big>)</big><a class="reference internal" href="_modules/pylorax.html#Lorax.run"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylorax.Lorax.run" title="Permalink to this definition">¶</a></dt>
 <dd></dd></dl>
 
 </dd></dl>
@@ -1465,7 +1518,7 @@ image is built with the filename &#8220;${prefix}-${kernel.version}.img&#8221;</
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/search.html b/docs/html/search.html
index ef16cd8a..429a1393 100644
--- a/docs/html/search.html
+++ b/docs/html/search.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Search &mdash; Lorax 23.12 documentation</title>
+  <title>Search &mdash; Lorax 24.1 documentation</title>
   
 
   
@@ -30,7 +30,7 @@
   
 
   
-    <link rel="top" title="Lorax 23.12 documentation" href="index.html"/> 
+    <link rel="top" title="Lorax 24.1 documentation" href="index.html"/> 
 
   
   <script src="_static/js/modernizr.min.js"></script>
@@ -190,7 +190,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'23.12',
+            VERSION:'24.1',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
             HAS_SOURCE:  true
diff --git a/docs/html/searchindex.js b/docs/html/searchindex.js
index 7ff8292f..99181526 100644
--- a/docs/html/searchindex.js
+++ b/docs/html/searchindex.js
@@ -1 +1 @@
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