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[thirdparty/systemd.git] / man / systemd-system-update-generator.xml

<?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">
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  Copyright 2012 Lennart Poettering

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<refentry id="systemd-system-update-generator">

        <refentryinfo>
                <title>systemd-system-update-generator</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-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> exists. This is
                required to implement the logic explained in the
                <ulink
                url="http://freedesktop.org/wiki/Software/systemd/SystemUpdates">System
                Updates Specification</ulink>.
                </para>

                <para><filename>systemd-system-update-generator</filename>
                implements the <ulink
                url="http://www.freedesktop.org/wiki/Software/systemd/Generators">generator
                specification</ulink>.</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>