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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>systemd-update-done.service</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><style>
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<span style="float:right">systemd 221</span><hr><div class="refentry"><a name="systemd-update-done.service"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>systemd-update-done.service, systemd-update-done — Mark <code class="filename">/etc</code> and <code class="filename">/var</code> fully updated</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><p><code class="filename">systemd-update-done.service</code></p><p><code class="filename">/usr/lib/systemd/systemd-update-done</code></p></div><div class="refsect1"><a name="idm47246327173808"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><code class="filename">systemd-update-done.service</code> is a
service that is invoked as part of the first boot after the vendor
operating system resources in <code class="filename">/usr</code> have been
updated. This is useful to implement offline updates of
<code class="filename">/usr</code> which might requires updates to
<code class="filename">/etc</code> or <code class="filename">/var</code> on the
following boot.</p><p><code class="filename">systemd-update-done.service</code> updates the
file modification time (mtime) of the stamp files
<code class="filename">/etc/.updated</code> and
<code class="filename">/var/.updated</code> to the modification time of the
<code class="filename">/usr</code> directory, unless the stamp files are
already newer.</p><p>Services that shall run after offline upgrades of
<code class="filename">/usr</code> should order themselves before
<code class="filename">systemd-update-done.service</code>, and use the
<code class="varname">ConditionNeedsUpdate=</code> (see
<a href="systemd.unit.html"><span class="citerefentry"><span class="refentrytitle">systemd.unit</span>(5)</span></a>)
condition to make sure to run when <code class="filename">/etc</code> or
<code class="filename">/var</code> are older than <code class="filename">/usr</code>
according to the modification times of the files described above.
This requires that updates to <code class="filename">/usr</code> are always
followed by an update of the modification time of
<code class="filename">/usr</code>, for example by invoking
<a href="http://man7.org/linux/man-pages/man1/touch.1.html"><span class="citerefentry"><span class="refentrytitle">touch</span>(1)</span></a>
on it.</p></div><div class="refsect1"><a name="idm47246325407040"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
<a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>,
<a href="systemd.unit.html"><span class="citerefentry"><span class="refentrytitle">systemd.unit</span>(5)</span></a>,
<a href="http://man7.org/linux/man-pages/man1/touch.1.html"><span class="citerefentry"><span class="refentrytitle">touch</span>(1)</span></a>
</p></div></div></body></html>
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