mirror of
https://git.proxmox.com/git/systemd
synced 2025-08-03 08:46:15 +00:00
63 lines
4.9 KiB
HTML
63 lines
4.9 KiB
HTML
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>systemd-halt.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>
|
|
a.headerlink {
|
|
color: #c60f0f;
|
|
font-size: 0.8em;
|
|
padding: 0 4px 0 4px;
|
|
text-decoration: none;
|
|
visibility: hidden;
|
|
}
|
|
|
|
a.headerlink:hover {
|
|
background-color: #c60f0f;
|
|
color: white;
|
|
}
|
|
|
|
h1:hover > a.headerlink, h2:hover > a.headerlink, h3:hover > a.headerlink, dt:hover > a.headerlink {
|
|
visibility: visible;
|
|
}
|
|
</style><a href="index.html">Index </a>·
|
|
<a href="systemd.directives.html">Directives </a>·
|
|
<a href="../python-systemd/index.html">Python </a>·
|
|
<a href="../libudev/index.html">libudev </a>·
|
|
<a href="../libudev/index.html">gudev </a><span style="float:right">systemd 204</span><hr><div class="refentry"><a name="systemd-halt.service"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>systemd-halt.service, systemd-poweroff.service, systemd-reboot.service, systemd-kexec.service, systemd-shutdown — System shutdown logic</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><p><code class="filename">systemd-halt.service</code></p><p><code class="filename">systemd-poweroff.service</code></p><p><code class="filename">systemd-reboot.service</code></p><p><code class="filename">systemd-kexec.service</code></p><p><code class="filename">/usr/lib/systemd/systemd-shutdown</code></p></div><div class="refsect1"><a name="idm259768592160"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><code class="filename">systemd-halt.service</code> is a
|
|
system service that is pulled in by
|
|
<code class="filename">halt.target</code> and is responsible
|
|
for the actual system halt. Similar,
|
|
<code class="filename">systemd-poweroff.service</code> is
|
|
pulled in by <code class="filename">poweroff.target</code>,
|
|
<code class="filename">systemd-reboot.service</code> by
|
|
<code class="filename">reboot.target</code> and
|
|
<code class="filename">systemd-kexec.service</code> by
|
|
<code class="filename">kexec.target</code> to execute the
|
|
respective actions.</p><p>When these services are run they ensure that PID
|
|
1 is replaced by the
|
|
<code class="filename">/usr/lib/systemd/systemd-shutdown</code>
|
|
tool which is then responsible for the actual
|
|
shutdown. Before shutting down this binary will try to
|
|
unmount all remaining file systems, disable all
|
|
remaining swap devices, detach all remaining storage
|
|
devices and kill all remaining processes.</p><p>Immediately before executing the actual system
|
|
halt/poweroff/reboot/kexec
|
|
<code class="filename">systemd-shutdown</code> will run all
|
|
executables in
|
|
<code class="filename">/usr/lib/systemd/system-shutdown/</code>
|
|
and pass one arguments to them: either
|
|
"<code class="literal">halt</code>",
|
|
"<code class="literal">poweroff</code>",
|
|
"<code class="literal">reboot</code>" or
|
|
"<code class="literal">kexec</code>", depending on the chosen
|
|
action. All executables in this directory are executed
|
|
in parallel, and execution of the action is not
|
|
continued before all executables finished.</p><p>Note that
|
|
<code class="filename">systemd-halt.service</code> (and the
|
|
related units) should never be executed
|
|
directly. Instead, trigger system shutdown with a
|
|
command such as "<code class="literal">systemctl halt</code>" or
|
|
suchlike.</p></div><div class="refsect1"><a name="idm259768653216"></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="systemctl.html"><span class="citerefentry"><span class="refentrytitle">systemctl</span>(1)</span></a>,
|
|
<a href="systemd.special.html"><span class="citerefentry"><span class="refentrytitle">systemd.special</span>(7)</span></a>,
|
|
<a href="reboot.html"><span class="citerefentry"><span class="refentrytitle">reboot</span>(2)</span></a>,
|
|
<a href="systemd-suspend.service.html"><span class="citerefentry"><span class="refentrytitle">systemd-suspend.service</span>(8)</span></a>
|
|
</p></div></div></body></html>
|