<!DOCTYPE html> <!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]--> <!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]--> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>pylorax.mount — Lorax 25.2 documentation</title> <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" /> <link rel="top" title="Lorax 25.2 documentation" href="../../index.html"/> <link rel="up" title="pylorax" href="../pylorax.html"/> <script src="../../_static/js/modernizr.min.js"></script> </head> <body class="wy-body-for-nav" role="document"> <div class="wy-grid-for-nav"> <nav data-toggle="wy-nav-shift" class="wy-nav-side"> <div class="wy-side-scroll"> <div class="wy-side-nav-search"> <a href="../../index.html" class="icon icon-home"> Lorax </a> <div class="version"> 25.2 </div> <div role="search"> <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get"> <input type="text" name="q" placeholder="Search docs" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> </div> <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation"> <ul> <li class="toctree-l1"><a class="reference internal" href="../../intro.html">Introduction to Lorax</a></li> <li class="toctree-l1"><a class="reference internal" href="../../intro.html#before-lorax">Before Lorax</a></li> <li class="toctree-l1"><a class="reference internal" href="../../lorax.html">Lorax</a></li> <li class="toctree-l1"><a class="reference internal" href="../../livemedia-creator.html">livemedia-creator</a></li> <li class="toctree-l1"><a class="reference internal" href="../../product-images.html">Product and Updates Images</a></li> <li class="toctree-l1"><a class="reference internal" href="../../modules.html">pylorax</a></li> </ul> </div> </div> </nav> <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> <nav class="wy-nav-top" role="navigation" aria-label="top navigation"> <i data-toggle="wy-nav-top" class="fa fa-bars"></i> <a href="../../index.html">Lorax</a> </nav> <div class="wy-nav-content"> <div class="rst-content"> <div role="navigation" aria-label="breadcrumbs navigation"> <ul class="wy-breadcrumbs"> <li><a href="../../index.html">Docs</a> »</li> <li><a href="../index.html">Module code</a> »</li> <li><a href="../pylorax.html">pylorax</a> »</li> <li>pylorax.mount</li> <li class="wy-breadcrumbs-aside"> </li> </ul> <hr/> </div> <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article"> <div itemprop="articleBody"> <h1>Source code for pylorax.mount</h1><div class="highlight"><pre> <span class="c"># mount.py</span> <span class="c">#</span> <span class="c"># Copyright (C) 2011-2015 Red Hat, Inc.</span> <span class="c">#</span> <span class="c"># This program is free software; you can redistribute it and/or modify</span> <span class="c"># it under the terms of the GNU General Public License as published by</span> <span class="c"># the Free Software Foundation; either version 2 of the License, or</span> <span class="c"># (at your option) any later version.</span> <span class="c">#</span> <span class="c"># This program is distributed in the hope that it will be useful,</span> <span class="c"># but WITHOUT ANY WARRANTY; without even the implied warranty of</span> <span class="c"># MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span> <span class="c"># GNU General Public License for more details.</span> <span class="c">#</span> <span class="c"># You should have received a copy of the GNU General Public License</span> <span class="c"># along with this program. If not, see <http://www.gnu.org/licenses/>.</span> <span class="c">#</span> <span class="c"># Author(s): Brian C. Lane <bcl@redhat.com></span> <span class="c">#</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">"livemedia-creator"</span><span class="p">)</span> <span class="kn">import</span> <span class="nn">os</span> <span class="kn">from</span> <span class="nn">pylorax.imgutils</span> <span class="kn">import</span> <span class="n">mount</span><span class="p">,</span> <span class="n">umount</span> <span class="kn">from</span> <span class="nn">pylorax.executils</span> <span class="kn">import</span> <span class="n">execWithCapture</span> <div class="viewcode-block" id="IsoMountpoint"><a class="viewcode-back" href="../../pylorax.html#pylorax.mount.IsoMountpoint">[docs]</a><span class="k">class</span> <span class="nc">IsoMountpoint</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Mount the iso and check to make sure the vmlinuz and initrd.img files exist</span> <span class="sd"> Also check the iso for a a stage2 image and set a flag and extract the</span> <span class="sd"> iso's label.</span> <span class="sd"> stage2 can be either LiveOS/squashfs.img or images/install.img</span> <span class="sd"> """</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">iso_path</span><span class="p">,</span> <span class="n">initrd_path</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Mount the iso</span> <span class="sd"> :param str iso_path: Path to the iso to mount</span> <span class="sd"> :param str initrd_path: Optional path to initrd</span> <span class="sd"> initrd_path can be used to point to a tree with a newer</span> <span class="sd"> initrd.img than the iso has. The iso is still used for stage2.</span> <span class="sd"> self.kernel and self.initrd point to the kernel and initrd.</span> <span class="sd"> self.stage2 is set to True if there is a stage2 image.</span> <span class="sd"> self.repo is the path to the mounted iso if there is a /repodata dir.</span> <span class="sd"> """</span> <span class="bp">self</span><span class="o">.</span><span class="n">label</span> <span class="o">=</span> <span class="bp">None</span> <span class="bp">self</span><span class="o">.</span><span class="n">iso_path</span> <span class="o">=</span> <span class="n">iso_path</span> <span class="bp">self</span><span class="o">.</span><span class="n">initrd_path</span> <span class="o">=</span> <span class="n">initrd_path</span> <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">initrd_path</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">mount_dir</span> <span class="o">=</span> <span class="n">mount</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">iso_path</span><span class="p">,</span> <span class="n">opts</span><span class="o">=</span><span class="s">"loop"</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">mount_dir</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">initrd_path</span> <span class="bp">self</span><span class="o">.</span><span class="n">kernel</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">mount_dir</span><span class="o">+</span><span class="s">"/isolinux/vmlinuz"</span> <span class="bp">self</span><span class="o">.</span><span class="n">initrd</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">mount_dir</span><span class="o">+</span><span class="s">"/isolinux/initrd.img"</span> <span class="k">if</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">isdir</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mount_dir</span><span class="o">+</span><span class="s">"/repodata"</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">repo</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">mount_dir</span> <span class="k">else</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">repo</span> <span class="o">=</span> <span class="bp">None</span> <span class="bp">self</span><span class="o">.</span><span class="n">stage2</span> <span class="o">=</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">mount_dir</span><span class="o">+</span><span class="s">"/LiveOS/squashfs.img"</span><span class="p">)</span> <span class="ow">or</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">mount_dir</span><span class="o">+</span><span class="s">"/images/install.img"</span><span class="p">)</span> <span class="k">try</span><span class="p">:</span> <span class="k">for</span> <span class="n">f</span> <span class="ow">in</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">kernel</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">initrd</span><span class="p">]:</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">isfile</span><span class="p">(</span><span class="n">f</span><span class="p">):</span> <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">"Missing file on iso: {0}"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">f</span><span class="p">))</span> <span class="k">except</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">umount</span><span class="p">()</span> <span class="k">raise</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_iso_label</span><span class="p">()</span> <div class="viewcode-block" id="IsoMountpoint.umount"><a class="viewcode-back" href="../../pylorax.html#pylorax.mount.IsoMountpoint.umount">[docs]</a> <span class="k">def</span> <span class="nf">umount</span><span class="p">(</span> <span class="bp">self</span> <span class="p">):</span> <span class="sd">"""Unmount the iso"""</span> <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">initrd_path</span><span class="p">:</span> <span class="n">umount</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mount_dir</span><span class="p">)</span> </div> <div class="viewcode-block" id="IsoMountpoint.get_iso_label"><a class="viewcode-back" href="../../pylorax.html#pylorax.mount.IsoMountpoint.get_iso_label">[docs]</a> <span class="k">def</span> <span class="nf">get_iso_label</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Get the iso's label using isoinfo</span> <span class="sd"> Sets self.label if one is found</span> <span class="sd"> """</span> <span class="n">isoinfo_output</span> <span class="o">=</span> <span class="n">execWithCapture</span><span class="p">(</span><span class="s">"isoinfo"</span><span class="p">,</span> <span class="p">[</span><span class="s">"-d"</span><span class="p">,</span> <span class="s">"-i"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">iso_path</span><span class="p">])</span> <span class="n">log</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">isoinfo_output</span><span class="p">)</span> <span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">isoinfo_output</span><span class="o">.</span><span class="n">splitlines</span><span class="p">():</span> <span class="k">if</span> <span class="n">line</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s">"Volume id: "</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">label</span> <span class="o">=</span> <span class="n">line</span><span class="p">[</span><span class="mi">11</span><span class="p">:]</span> <span class="k">return</span></div></div> </pre></div> </div> </div> <footer> <hr/> <div role="contentinfo"> <p> © Copyright 2015, Red Hat, Inc.. </p> </div> Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. </footer> </div> </div> </section> </div> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT:'../../', VERSION:'25.2', COLLAPSE_INDEX:false, FILE_SUFFIX:'.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../../_static/jquery.js"></script> <script type="text/javascript" src="../../_static/underscore.js"></script> <script type="text/javascript" src="../../_static/doctools.js"></script> <script 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