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systemd/man/systemd-system-update-generator.xml
Eric Curtin b9dac41837 Support /etc/system-update for OSTree systems
This is required when / is immutable and cannot be written at runtime.

Co-authored-by: Richard Hughes <richard@hughsie.com>
2023-04-25 17:40:41 +02:00

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XML

<?xml version="1.0"?>
<!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
<refentry id="systemd-system-update-generator">
<refentryinfo>
<title>systemd-system-update-generator</title>
<productname>systemd</productname>
</refentryinfo>
<refmeta>
<refentrytitle>systemd-system-update-generator</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd-system-update-generator</refname>
<refpurpose>Generator for redirecting boot to offline update mode</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>/usr/lib/systemd/system-generators/systemd-system-update-generator</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><filename>systemd-system-update-generator</filename> is a
generator that automatically redirects the boot process to
<filename>system-update.target</filename>, if
<filename>/system-update</filename> or <filename>/etc/system-update</filename> exists. This is required to
implement the logic explained in the
<citerefentry><refentrytitle>systemd.offline-updates</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
</para>
<para><filename>systemd-system-update-generator</filename> implements
<citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>