man/systemd-update-done.service.html

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  22   <a href="../libudev/index.html">gudev </a><span style="float:right">systemd 219</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="idm139688827063568"></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
  23     service that is invoked as part of the first boot after the vendor
  24     operating system resources in <code class="filename">/usr</code> have been
  25     updated. This is useful to implement offline updates of
  26     <code class="filename">/usr</code> which might requires updates to
  27     <code class="filename">/etc</code> or <code class="filename">/var</code> on the
  28     following boot.</p><p><code class="filename">systemd-update-done.service</code> updates the
  29     file modification time (mtime) of the stamp files
  30     <code class="filename">/etc/.updated</code> and
  31     <code class="filename">/var/.updated</code> to the modification time of the
  32     <code class="filename">/usr</code> directory, unless the stamp files are
  33     already newer.</p><p>Services that shall run after offline upgrades of
  34     <code class="filename">/usr</code> should order themselves before
  35     <code class="filename">systemd-update-done.service</code>, and use the
  36     <code class="varname">ConditionNeedsUpdate=</code> (see
  37     <a href="systemd.unit.html"><span class="citerefentry"><span class="refentrytitle">systemd.unit</span>(5)</span></a>)
  38     condition to make sure to run when <code class="filename">/etc</code> or
  39     <code class="filename">/var</code> are older than <code class="filename">/usr</code>
  40     according to the modification times of the files described above.
  41     This requires that updates to <code class="filename">/usr</code> are always
  42     followed by an update of the modification time of
  43     <code class="filename">/usr</code>, for example by invoking
  44     <a href="http://man7.org/linux/man-pages/man1/touch.1.html"><span class="citerefentry"><span class="refentrytitle">touch</span>(1)</span></a>
  45     on it.</p></div><div class="refsect1"><a name="idm139688823448720"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
  46       <a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>,
  47       <a href="systemd.unit.html"><span class="citerefentry"><span class="refentrytitle">systemd.unit</span>(5)</span></a>,
  48       <a href="http://man7.org/linux/man-pages/man1/touch.1.html"><span class="citerefentry"><span class="refentrytitle">touch</span>(1)</span></a>
  49     </p></div></div></body></html>