From 41b7beb7404c134820870ab21ae0242dfc749b2c Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@sbcglobal.net>
Date: Wed, 26 Oct 2016 22:49:41 -0400
Subject: ./tools/notsd-move

---
 .../systemd-shutdown/systemd-shutdown.xml          | 119 +++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 src/grp-system/systemd-shutdown/systemd-shutdown.xml

(limited to 'src/grp-system/systemd-shutdown/systemd-shutdown.xml')

diff --git a/src/grp-system/systemd-shutdown/systemd-shutdown.xml b/src/grp-system/systemd-shutdown/systemd-shutdown.xml
new file mode 100644
index 0000000000..d16e5d628f
--- /dev/null
+++ b/src/grp-system/systemd-shutdown/systemd-shutdown.xml
@@ -0,0 +1,119 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+  This file is part of systemd.
+
+  Copyright 2012 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="systemd-halt.service">
+
+  <refentryinfo>
+    <title>systemd-halt.service</title>
+    <productname>systemd</productname>
+
+    <authorgroup>
+      <author>
+        <contrib>Developer</contrib>
+        <firstname>Lennart</firstname>
+        <surname>Poettering</surname>
+        <email>lennart@poettering.net</email>
+      </author>
+    </authorgroup>
+  </refentryinfo>
+
+  <refmeta>
+    <refentrytitle>systemd-halt.service</refentrytitle>
+    <manvolnum>8</manvolnum>
+  </refmeta>
+
+  <refnamediv>
+    <refname>systemd-halt.service</refname>
+    <refname>systemd-poweroff.service</refname>
+    <refname>systemd-reboot.service</refname>
+    <refname>systemd-kexec.service</refname>
+    <refname>systemd-shutdown</refname>
+    <refpurpose>System shutdown logic</refpurpose>
+  </refnamediv>
+
+  <refsynopsisdiv>
+    <para><filename>systemd-halt.service</filename></para>
+    <para><filename>systemd-poweroff.service</filename></para>
+    <para><filename>systemd-reboot.service</filename></para>
+    <para><filename>systemd-kexec.service</filename></para>
+    <para><filename>/usr/lib/systemd/systemd-shutdown</filename></para>
+    <para><filename>/usr/lib/systemd/system-shutdown/</filename></para>
+  </refsynopsisdiv>
+
+  <refsect1>
+    <title>Description</title>
+
+    <para><filename>systemd-halt.service</filename> is a system
+    service that is pulled in by <filename>halt.target</filename> and
+    is responsible for the actual system halt. Similarly,
+    <filename>systemd-poweroff.service</filename> is pulled in by
+    <filename>poweroff.target</filename>,
+    <filename>systemd-reboot.service</filename> by
+    <filename>reboot.target</filename> and
+    <filename>systemd-kexec.service</filename> by
+    <filename>kexec.target</filename> to execute the respective
+    actions.</para>
+
+    <para>When these services are run, they ensure that PID 1 is
+    replaced by the
+    <filename>/usr/lib/systemd/systemd-shutdown</filename> 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.</para>
+
+    <para>It is necessary to have this code in a separate binary
+    because otherwise rebooting after an upgrade might be broken — the
+    running PID 1 could still depend on libraries which are not
+    available any more, thus keeping the file system busy, which then
+    cannot be re-mounted read-only.</para>
+
+    <para>Immediately before executing the actual system
+    halt/poweroff/reboot/kexec <filename>systemd-shutdown</filename>
+    will run all executables in
+    <filename>/usr/lib/systemd/system-shutdown/</filename> and pass
+    one arguments to them: either <literal>halt</literal>,
+    <literal>poweroff</literal>, <literal>reboot</literal> or
+    <literal>kexec</literal>, 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.</para>
+
+    <para>Note that <filename>systemd-halt.service</filename> (and the
+    related units) should never be executed directly. Instead, trigger
+    system shutdown with a command such as <literal>systemctl
+    halt</literal> or suchlike.</para>
+  </refsect1>
+
+  <refsect1>
+    <title>See Also</title>
+    <para>
+      <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>reboot</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+    </para>
+  </refsect1>
+
+</refentry>
-- 
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