543 lines
32 KiB
HTML
543 lines
32 KiB
HTML
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<title>Lorax — Lorax 29.0 documentation</title>
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<div class="version">
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29.0
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<ul class="current">
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<li class="toctree-l1"><a class="reference internal" href="intro.html">Introduction to Lorax</a></li>
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<li class="toctree-l1"><a class="reference internal" href="intro.html#before-lorax">Before Lorax</a></li>
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<li class="toctree-l1 current"><a class="current reference internal" href="#">Lorax</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="#lorax-cmdline-arguments">lorax cmdline arguments</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#quickstart">Quickstart</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#running-inside-of-mock">Running inside of mock</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#how-it-works">How it works</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="#runtime-install-tmpl">runtime-install.tmpl</a></li>
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<li class="toctree-l3"><a class="reference internal" href="#runtime-postinstall-tmpl">runtime-postinstall.tmpl</a></li>
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<li class="toctree-l3"><a class="reference internal" href="#runtime-cleanup-tmpl">runtime-cleanup.tmpl</a></li>
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<li class="toctree-l3"><a class="reference internal" href="#the-squashfs-filesystem">The squashfs filesystem</a></li>
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<li class="toctree-l3"><a class="reference internal" href="#iso-creation">iso creation</a></li>
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<li class="toctree-l1"><a class="reference internal" href="livemedia-creator.html">livemedia-creator</a></li>
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<li class="toctree-l1"><a class="reference internal" href="product-images.html">Product and Updates Images</a></li>
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<li class="toctree-l1"><a class="reference internal" href="modules.html">pylorax</a></li>
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<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
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<div itemprop="articleBody">
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<div class="section" id="lorax">
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<h1>Lorax<a class="headerlink" href="#lorax" title="Permalink to this headline">¶</a></h1>
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<table class="docutils field-list" frame="void" rules="none">
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<col class="field-name" />
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<col class="field-body" />
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<tbody valign="top">
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<tr class="field-odd field"><th class="field-name">Authors:</th><td class="field-body">Brian C. Lane <<a class="reference external" href="mailto:bcl%40redhat.com">bcl<span>@</span>redhat<span>.</span>com</a>></td>
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</tr>
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</tbody>
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</table>
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<p>“I am the Lorax. I speak for the trees [and images].”</p>
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<p>The <a class="reference external" href="https://github.com/rhinstaller/lorax">lorax</a> tool is used to create the
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<a class="reference external" href="https://github.com/rhinstaller/anaconda">Anaconda</a> installer boot.iso as
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well as the basic release tree, and .treeinfo metadata file. Its dependencies
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are fairly light-weight because it needs to be able to run in a mock chroot
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environment. It is best to run lorax from the same release as is being targeted
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because the templates may have release specific logic in them. eg. Use the
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rawhide version to build the boot.iso for rawhide, along with the rawhide
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repositories.</p>
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<div class="section" id="lorax-cmdline-arguments">
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<h2>lorax cmdline arguments<a class="headerlink" href="#lorax-cmdline-arguments" title="Permalink to this headline">¶</a></h2>
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<p>Create the Anaconda boot.iso</p>
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<div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">usage</span><span class="p">:</span> <span class="n">lorax</span> <span class="p">[</span><span class="o">-</span><span class="n">h</span><span class="p">]</span> <span class="o">-</span><span class="n">p</span> <span class="n">PRODUCT</span> <span class="o">-</span><span class="n">v</span> <span class="n">VERSION</span> <span class="o">-</span><span class="n">r</span> <span class="n">RELEASE</span> <span class="p">[</span><span class="o">-</span><span class="n">s</span> <span class="n">REPOSITORY</span><span class="p">]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">repo</span> <span class="n">REPOSITORY</span><span class="p">]</span> <span class="p">[</span><span class="o">-</span><span class="n">m</span> <span class="n">REPOSITORY</span><span class="p">]</span> <span class="p">[</span><span class="o">-</span><span class="n">t</span> <span class="n">VARIANT</span><span class="p">]</span> <span class="p">[</span><span class="o">-</span><span class="n">b</span> <span class="n">URL</span><span class="p">]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">isfinal</span><span class="p">]</span> <span class="p">[</span><span class="o">-</span><span class="n">c</span> <span class="n">CONFIGFILE</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">proxy</span> <span class="n">HOST</span><span class="p">]</span> <span class="p">[</span><span class="o">-</span><span class="n">i</span> <span class="n">PACKAGE</span><span class="p">]</span>
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<span class="p">[</span><span class="o">-</span><span class="n">e</span> <span class="n">PACKAGE</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">buildarch</span> <span class="n">ARCH</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">volid</span> <span class="n">VOLID</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">macboot</span><span class="p">]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">nomacboot</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">noupgrade</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">logfile</span> <span class="n">LOGFILE</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">tmp</span> <span class="n">TMP</span><span class="p">]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">cachedir</span> <span class="n">CACHEDIR</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">workdir</span> <span class="n">WORKDIR</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">force</span><span class="p">]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">add</span><span class="o">-</span><span class="n">template</span> <span class="n">ADD_TEMPLATES</span><span class="p">]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">add</span><span class="o">-</span><span class="n">template</span><span class="o">-</span><span class="n">var</span> <span class="n">ADD_TEMPLATE_VARS</span><span class="p">]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">add</span><span class="o">-</span><span class="n">arch</span><span class="o">-</span><span class="n">template</span> <span class="n">ADD_ARCH_TEMPLATES</span><span class="p">]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">add</span><span class="o">-</span><span class="n">arch</span><span class="o">-</span><span class="n">template</span><span class="o">-</span><span class="n">var</span> <span class="n">ADD_ARCH_TEMPLATE_VARS</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">noverify</span><span class="p">]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">sharedir</span> <span class="n">SHAREDIR</span><span class="p">]</span> <span class="p">[</span><span class="o">--</span><span class="n">enablerepo</span> <span class="p">[</span><span class="n">repo</span><span class="p">]]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">disablerepo</span> <span class="p">[</span><span class="n">repo</span><span class="p">]]</span> <span class="p">[</span><span class="o">--</span><span class="n">rootfs</span><span class="o">-</span><span class="n">size</span> <span class="n">ROOTFS_SIZE</span><span class="p">]</span>
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<span class="p">[</span><span class="o">--</span><span class="n">noverifyssl</span><span class="p">]</span> <span class="p">[</span><span class="o">-</span><span class="n">V</span><span class="p">]</span>
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<span class="n">OUTPUTDIR</span>
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</pre></div>
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</div>
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<dl class="docutils">
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<dt>Positional arguments:</dt>
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<dd><table class="first last docutils option-list" frame="void" rules="none">
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<col class="option" />
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<col class="description" />
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<tbody valign="top">
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<tr><td class="option-group">
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<kbd>outputdir</kbd></td>
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<td>Output directory</td></tr>
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</tbody>
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</table>
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</dd>
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<dt>Options:</dt>
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<dd><table class="first last docutils option-list" frame="void" rules="none">
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<col class="option" />
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<col class="description" />
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<tbody valign="top">
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<tr><td class="option-group">
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<kbd><span class="option">-p</span>, <span class="option">--product</span></kbd></td>
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<td>product name</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">-v</span>, <span class="option">--version</span></kbd></td>
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<td>version identifier</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">-r</span>, <span class="option">--release</span></kbd></td>
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<td>release information</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">-s=[]</span>, <span class="option">--source=[]</span></kbd></td>
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</tr>
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<tr><td> </td><td>source repository (may be listed multiple times)</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">--repo=[]</span></kbd></td>
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<td>source dnf repository file</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">-m=[]</span>, <span class="option">--mirrorlist=[]</span></kbd></td>
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</tr>
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<tr><td> </td><td>mirrorlist repository (may be listed multiple times)</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">-t=</span>, <span class="option">--variant=</span></kbd></td>
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</tr>
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<tr><td> </td><td>variant name</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">-b=your distribution provided bug reporting tool</span>, <span class="option">--bugurl=your distribution provided bug reporting tool</span></kbd></td>
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</tr>
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<tr><td> </td><td>bug reporting URL for the product</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--isfinal=False</span></kbd></td>
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</tr>
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<tr><td> </td><td>Undocumented</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">-c=/etc/lorax/lorax.conf</span>, <span class="option">--config=/etc/lorax/lorax.conf</span></kbd></td>
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</tr>
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<tr><td> </td><td>config file</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">--proxy</span></kbd></td>
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<td>repo proxy url:port</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">-i=[]</span>, <span class="option">--installpkgs=[]</span></kbd></td>
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</tr>
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<tr><td> </td><td>package glob to install before runtime-install.tmpl runs. (may be listed multiple times)</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">-e=[]</span>, <span class="option">--excludepkgs=[]</span></kbd></td>
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</tr>
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<tr><td> </td><td>package glob to remove before runtime-install.tmpl runs. (may be listed multiple times)</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">--buildarch</span></kbd></td>
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<td>build architecture</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">--volid</span></kbd></td>
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<td>volume id</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">--macboot=True</span></kbd></td>
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<td>Undocumented</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--nomacboot=True</span></kbd></td>
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</tr>
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<tr><td> </td><td>Undocumented</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--noupgrade=True</span></kbd></td>
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</tr>
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<tr><td> </td><td>Undocumented</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--logfile=./lorax.log</span></kbd></td>
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</tr>
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<tr><td> </td><td>Path to logfile</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">--tmp=/var/tmp</span></kbd></td>
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<td>Top level temporary directory</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">--cachedir</span></kbd></td>
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<td>DNF cache directory. Default is a temporary dir.</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">--workdir</span></kbd></td>
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<td>Work directory, overrides –tmp. Default is a temporary dir under /var/tmp</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">--force=False</span></kbd></td>
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<td>Run even when the destination directory exists</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--add-template=[]</span></kbd></td>
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</tr>
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<tr><td> </td><td>Additional template for runtime image</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--add-template-var=[]</span></kbd></td>
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</tr>
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<tr><td> </td><td>Set variable for runtime image template</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--add-arch-template=[]</span></kbd></td>
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</tr>
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<tr><td> </td><td>Additional template for architecture-specific image</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--add-arch-template-var=[]</span></kbd></td>
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</tr>
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<tr><td> </td><td>Set variable for architecture-specific image</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--noverify=True</span></kbd></td>
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</tr>
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<tr><td> </td><td>Do not verify the install root</td></tr>
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<tr><td class="option-group">
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<kbd><span class="option">--sharedir</span></kbd></td>
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<td>Directory containing all the templates. Overrides config file sharedir</td></tr>
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<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--enablerepo=[]</span></kbd></td>
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</tr>
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<tr><td> </td><td>Names of repos to enable</td></tr>
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||
<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--disablerepo=[]</span></kbd></td>
|
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</tr>
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<tr><td> </td><td>Names of repos to disable</td></tr>
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||
<tr><td class="option-group" colspan="2">
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<kbd><span class="option">--rootfs-size=2</span></kbd></td>
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</tr>
|
||
<tr><td> </td><td>Size of root filesystem in GiB. Defaults to 2.</td></tr>
|
||
<tr><td class="option-group" colspan="2">
|
||
<kbd><span class="option">--noverifyssl=False</span></kbd></td>
|
||
</tr>
|
||
<tr><td> </td><td>Do not verify SSL certificates</td></tr>
|
||
<tr><td class="option-group">
|
||
<kbd><span class="option">-V</span></kbd></td>
|
||
<td>show program’s version number and exit</td></tr>
|
||
</tbody>
|
||
</table>
|
||
</dd>
|
||
</dl>
|
||
</div>
|
||
<div class="section" id="quickstart">
|
||
<h2>Quickstart<a class="headerlink" href="#quickstart" title="Permalink to this headline">¶</a></h2>
|
||
<p>Run this as root to create a boot.iso in <code class="docutils literal"><span class="pre">./results/</span></code>:</p>
|
||
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">dnf</span> <span class="n">install</span> <span class="n">lorax</span>
|
||
<span class="n">setenforce</span> <span class="mi">0</span>
|
||
<span class="n">lorax</span> <span class="o">-</span><span class="n">p</span> <span class="n">Fedora</span> <span class="o">-</span><span class="n">v</span> <span class="mi">23</span> <span class="o">-</span><span class="n">r</span> <span class="mi">23</span> \
|
||
<span class="o">-</span><span class="n">s</span> <span class="n">http</span><span class="p">:</span><span class="o">//</span><span class="n">dl</span><span class="o">.</span><span class="n">fedoraproject</span><span class="o">.</span><span class="n">org</span><span class="o">/</span><span class="n">pub</span><span class="o">/</span><span class="n">fedora</span><span class="o">/</span><span class="n">linux</span><span class="o">/</span><span class="n">releases</span><span class="o">/</span><span class="mi">23</span><span class="o">/</span><span class="n">Everything</span><span class="o">/</span><span class="n">x86_64</span><span class="o">/</span><span class="n">os</span><span class="o">/</span> \
|
||
<span class="o">-</span><span class="n">s</span> <span class="n">http</span><span class="p">:</span><span class="o">//</span><span class="n">dl</span><span class="o">.</span><span class="n">fedoraproject</span><span class="o">.</span><span class="n">org</span><span class="o">/</span><span class="n">pub</span><span class="o">/</span><span class="n">fedora</span><span class="o">/</span><span class="n">linux</span><span class="o">/</span><span class="n">updates</span><span class="o">/</span><span class="mi">23</span><span class="o">/</span><span class="n">x86_64</span><span class="o">/</span> \
|
||
<span class="o">./</span><span class="n">results</span><span class="o">/</span>
|
||
<span class="n">setenforce</span> <span class="mi">1</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>You can add your own repos with <code class="docutils literal"><span class="pre">-s</span></code> and packages with higher NVRs will
|
||
override the ones in the distribution repositories.</p>
|
||
<p>Under <code class="docutils literal"><span class="pre">./results/</span></code> will be the release tree files: .discinfo, .treeinfo, everything that
|
||
goes onto the boot.iso, the pxeboot directory, and the boot.iso under <code class="docutils literal"><span class="pre">./images/</span></code>.</p>
|
||
</div>
|
||
<div class="section" id="running-inside-of-mock">
|
||
<h2>Running inside of mock<a class="headerlink" href="#running-inside-of-mock" title="Permalink to this headline">¶</a></h2>
|
||
<p>If you are using lorax with mock v1.3.4 or later you will need to pass
|
||
<code class="docutils literal"><span class="pre">--old-chroot</span></code> to mock. Mock now defaults to using systemd-nspawn which cannot
|
||
create the needed loop device nodes. Passing <code class="docutils literal"><span class="pre">--old-chroot</span></code> will use the old
|
||
system where <code class="docutils literal"><span class="pre">/dev/loop*</span></code> is setup for you.</p>
|
||
</div>
|
||
<div class="section" id="how-it-works">
|
||
<h2>How it works<a class="headerlink" href="#how-it-works" title="Permalink to this headline">¶</a></h2>
|
||
<p>Lorax uses <a class="reference external" href="https://github.com/rpm-software-management/dnf">dnf</a> to install
|
||
packages into a temporary directory, sets up configuration files, it then
|
||
removes unneeded files to save space, and creates a squashfs filesystem of the
|
||
files. The iso is then built using a generic initramfs and the kernel from the
|
||
selected repositories.</p>
|
||
<p>To drive these processes Lorax uses a custom template system, based on <a class="reference external" href="http://www.makotemplates.org/">Mako
|
||
templates</a> with the addition of custom
|
||
commands (documented in <a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner" title="pylorax.ltmpl.LoraxTemplateRunner"><code class="xref py py-class docutils literal"><span class="pre">pylorax.ltmpl.LoraxTemplateRunner</span></code></a>). Mako
|
||
supports <code class="docutils literal"><span class="pre">%if/%endif</span></code> blocks as well as free-form python code inside <code class="docutils literal"><span class="pre"><%</span>
|
||
<span class="pre">%></span></code> tags and variable substitution with <code class="docutils literal"><span class="pre">${}</span></code>. The default templates are
|
||
shipped with lorax in <code class="docutils literal"><span class="pre">/usr/share/lorax/templates.d/99-generic/</span></code> and use the
|
||
<code class="docutils literal"><span class="pre">.tmpl</span></code> extension.</p>
|
||
<div class="section" id="runtime-install-tmpl">
|
||
<h3>runtime-install.tmpl<a class="headerlink" href="#runtime-install-tmpl" title="Permalink to this headline">¶</a></h3>
|
||
<p>The <code class="docutils literal"><span class="pre">runtime-install.tmpl</span></code> template lists packages to be installed using the
|
||
<code class="docutils literal"><span class="pre">installpkg</span></code> command. This template is fairly simple, installing common packages and
|
||
architecture specific packages. It must end with the <code class="docutils literal"><span class="pre">run_pkg_transaction</span></code>
|
||
command which tells dnf to download and install the packages.</p>
|
||
</div>
|
||
<div class="section" id="runtime-postinstall-tmpl">
|
||
<h3>runtime-postinstall.tmpl<a class="headerlink" href="#runtime-postinstall-tmpl" title="Permalink to this headline">¶</a></h3>
|
||
<p>The <code class="docutils literal"><span class="pre">runtime-postinstall.tmpl</span></code> template is where the system configuration
|
||
happens. The installer environment is similar to a normal running system, but
|
||
needs some special handling. Configuration files are setup, systemd is told to
|
||
start the anaconda.target instead of a default system target, and a number of
|
||
unneeded services are disabled, some of which can interfere with the
|
||
installation. A number of template commands are used here:</p>
|
||
<ul class="simple">
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.append" title="pylorax.ltmpl.LoraxTemplateRunner.append"><code class="xref py py-func docutils literal"><span class="pre">append</span></code></a> to add text to a file.</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.chmod" title="pylorax.ltmpl.LoraxTemplateRunner.chmod"><code class="xref py py-func docutils literal"><span class="pre">chmod</span></code></a> changes the file’s mode.</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.gconfset" title="pylorax.ltmpl.LoraxTemplateRunner.gconfset"><code class="xref py py-func docutils literal"><span class="pre">gconfset</span></code></a> runs gconfset.</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.install" title="pylorax.ltmpl.LoraxTemplateRunner.install"><code class="xref py py-func docutils literal"><span class="pre">install</span></code></a> to install a file into the installroot.</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.mkdir" title="pylorax.ltmpl.LoraxTemplateRunner.mkdir"><code class="xref py py-func docutils literal"><span class="pre">mkdir</span></code></a> makes a new directory.</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.move" title="pylorax.ltmpl.LoraxTemplateRunner.move"><code class="xref py py-func docutils literal"><span class="pre">move</span></code></a> to move a file into the installroot</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.replace" title="pylorax.ltmpl.LoraxTemplateRunner.replace"><code class="xref py py-func docutils literal"><span class="pre">replace</span></code></a> does text substitution in a file</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.remove" title="pylorax.ltmpl.LoraxTemplateRunner.remove"><code class="xref py py-func docutils literal"><span class="pre">remove</span></code></a> deletes a file</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.runcmd" title="pylorax.ltmpl.LoraxTemplateRunner.runcmd"><code class="xref py py-func docutils literal"><span class="pre">runcmd</span></code></a> run arbitrary commands.</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.symlink" title="pylorax.ltmpl.LoraxTemplateRunner.symlink"><code class="xref py py-func docutils literal"><span class="pre">symlink</span></code></a> creates a symlink</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.systemctl" title="pylorax.ltmpl.LoraxTemplateRunner.systemctl"><code class="xref py py-func docutils literal"><span class="pre">systemctl</span></code></a> runs systemctl in the installroot</li>
|
||
</ul>
|
||
</div>
|
||
<div class="section" id="runtime-cleanup-tmpl">
|
||
<h3>runtime-cleanup.tmpl<a class="headerlink" href="#runtime-cleanup-tmpl" title="Permalink to this headline">¶</a></h3>
|
||
<p>The <code class="docutils literal"><span class="pre">runtime-cleanup.tmpl</span></code> template is used to remove files that aren’t strictly needed
|
||
by the installation environment. In addition to the <code class="docutils literal"><span class="pre">remove</span></code> template command it uses:</p>
|
||
<ul class="simple">
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.removepkg" title="pylorax.ltmpl.LoraxTemplateRunner.removepkg"><code class="xref py py-func docutils literal"><span class="pre">removepkg</span></code></a>
|
||
remove all of a specific package’s contents. A package may be pulled in as a dependency, but
|
||
not really used. eg. sound support.</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.removefrom" title="pylorax.ltmpl.LoraxTemplateRunner.removefrom"><code class="xref py py-func docutils literal"><span class="pre">removefrom</span></code></a>
|
||
Removes some files from a package. A file glob can be used, or the –allbut option to
|
||
remove everything except a select few.</li>
|
||
<li><a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.removekmod" title="pylorax.ltmpl.LoraxTemplateRunner.removekmod"><code class="xref py py-func docutils literal"><span class="pre">removekmod</span></code></a>
|
||
Removes kernel modules</li>
|
||
</ul>
|
||
</div>
|
||
<div class="section" id="the-squashfs-filesystem">
|
||
<h3>The squashfs filesystem<a class="headerlink" href="#the-squashfs-filesystem" title="Permalink to this headline">¶</a></h3>
|
||
<p>After <code class="docutils literal"><span class="pre">runtime-*.tmpl</span></code> templates have finished their work lorax creates an
|
||
empty ext4 filesystem, copies the remaining files to it, and makes a squashfs
|
||
filesystem of it. This file is the / of the boot.iso’s installer environment
|
||
and is what is in the LiveOS/squashfs.img file on the iso.</p>
|
||
</div>
|
||
<div class="section" id="iso-creation">
|
||
<h3>iso creation<a class="headerlink" href="#iso-creation" title="Permalink to this headline">¶</a></h3>
|
||
<p>The iso creation is handled by another set of templates. The one used depends
|
||
on the architecture that the iso is being created for. They are also stored in
|
||
<code class="docutils literal"><span class="pre">/usr/share/lorax/templates.d/99-generic</span></code> and are named after the arch, like
|
||
<code class="docutils literal"><span class="pre">x86.tmpl</span></code> and <code class="docutils literal"><span class="pre">aarch64.tmpl</span></code>. They handle creation of the tree, copying
|
||
configuration template files, configuration variable substitution, treeinfo
|
||
metadata (via the <a class="reference internal" href="pylorax.html#pylorax.ltmpl.LoraxTemplateRunner.treeinfo" title="pylorax.ltmpl.LoraxTemplateRunner.treeinfo"><code class="xref py py-func docutils literal"><span class="pre">treeinfo</span></code></a>
|
||
template command). Kernel and initrd are copied from the installroot to their
|
||
final locations and then mkisofs is run to create the boot.iso</p>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="custom-templates">
|
||
<h2>Custom Templates<a class="headerlink" href="#custom-templates" title="Permalink to this headline">¶</a></h2>
|
||
<p>The default set of templates and configuration files from the lorax-generic-templates package
|
||
are shipped in the <code class="docutils literal"><span class="pre">/usr/share/lorax/templates.d/99-generic/</span></code> directory. You can
|
||
make a copy of them and place them into another directory under <code class="docutils literal"><span class="pre">templates.d</span></code>
|
||
and they will be used instead if their sort order is below all other directories. This
|
||
allows multiple packages to ship lorax templates without conflict. You can (and probably
|
||
should) select the specific template directory by passing <code class="docutils literal"><span class="pre">--sharedir</span></code> to lorax.</p>
|
||
</div>
|
||
</div>
|
||
|
||
|
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|
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