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<title>s6-linux-init - tools for a Linux init system</title>
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<meta name="Keywords" content="s6 linux init administration root laurent bercot ska skarnet" />
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<p>
<a href="http://skarnet.org/software/">Software</a><br />
<a href="http://skarnet.org/">skarnet.org</a>
</p>
<h1> s6-linux-init </h1>
<h2> What is it ? </h2>
<p>
s6-linux-init is a set of minimalistic tools to create and manage
the init process on a Linux system - i.e. the first process created
by the kernel at boot time.
</p>
<p>
s6-linux-init is meant to automate creation of scripts revolving
around the use of other skarnet.org tools, especially s6, in order
to provide a complete booting environment with integrated supervision
and logging without having to hand-craft all the details.
</p>
<hr />
<h2> Installation </h2>
<h3> Requirements </h3>
<ul>
<li> A Linux-based system with a standard C development environment </li>
<li> GNU make, version 4.0 or later </li>
<li> <a href="http://skarnet.org/software/skalibs/">skalibs</a> version
2.3.5.1 or later </li>
<li> <a href="http://skarnet.org/software/execline/">execline</a> version
2.1.2.2 or later </li>
<li> <a href="http://skarnet.org/software/s6-portable-utils/">s6-portable-utils</a> version
2.0.5.0 or later </li>
<li> <a href="http://skarnet.org/software/s6-linux-utils/">s6-linux-utils</a> version
2.0.2.0 or later </li>
<li> <a href="http://skarnet.org/software/s6/">s6</a> version
2.1.4.0 or later </li>
</ul>
<p>
When you <em>build</em> s6-linux-init, the
<a href="s6-linux-init-maker.html">s6-linux-init-maker</a> tool
is created; then you <em>run</em> that tool to create an init script,
and then you can <em>boot</em> your system on that init script.
</p>
<p>
The listed dependencies are all <em>build-time</em> dependencies and also
<em>boot-time</em> dependencies, i.e. you need the tools installed to build
s6-linux-init and to boot your system. There are no <em>run-time</em>
dependencies, except skalibs if you linked against the shared version of
the library.
</p>
<h3> Licensing </h3>
<p>
s6-linux-utils is free software. It is available under the
<a href="http://opensource.org/licenses/ISC">ISC license</a>.
</p>
<h3> Download </h3>
<ul>
<li> The current released version of s6-linux-init is
<a href="s6-linux-init-0.0.1.0.tar.gz">0.0.1.0</a>. </li>
<li> Alternatively, you can checkout a copy of the s6-linux-init git repository:
<pre> git clone git://git.skarnet.org/s6-linux-init </pre> </li>
</ul>
<h3> Compilation </h3>
<ul>
<li> See the enclosed INSTALL file for installation details. </li>
</ul>
<h3> Upgrade notes </h3>
<ul>
<li> <a href="upgrade.html">This page</a> lists the differences to be aware of between
the previous versions of s6-linux-init and the current one. </li>
</ul>
<hr />
<h2> Reference </h2>
<h3> Commands </h3>
<p>
All these commands exit 111 if they encounter a temporary error, and
100 if they encounter a permanent error - such as a misuse.
</p>
<ul>
<li><a href="s6-linux-init-maker.html">The <tt>s6-linux-init-maker</tt> program</a></li>
</ul>
<h2> Related resources </h2>
<ul>
<li> <tt>s6-linux-init</tt> is discussed on the
<a href="http://skarnet.org/lists.html#skaware">skaware</a> mailing-list. </li>
</ul>
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