man/systemd-system-update-generator.xml

   1 <?xml version="1.0"?>
   2 <!--*-nxml-*-->
   3 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
   4 <!ENTITY % entities SYSTEM "custom-entities.ent" >
   5 %entities;
   6 ]>
   7 <!--
   8   This file is part of systemd.
   9
  10   Copyright 2012 Lennart Poettering
  11
  12   systemd is free software; you can redistribute it and/or modify it
  13   under the terms of the GNU Lesser General Public License as published by
  14   the Free Software Foundation; either version 2.1 of the License, or
  15   (at your option) any later version.
  16
  17   systemd is distributed in the hope that it will be useful, but
  18   WITHOUT ANY WARRANTY; without even the implied warranty of
  19   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  20   Lesser General Public License for more details.
  21
  22   You should have received a copy of the GNU Lesser General Public License
  23   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  24 -->
  25 <refentry id="systemd-system-update-generator">
  26
  27   <refentryinfo>
  28     <title>systemd-system-update-generator</title>
  29     <productname>systemd</productname>
  30
  31     <authorgroup>
  32       <author>
  33         <contrib>Developer</contrib>
  34         <firstname>Lennart</firstname>
  35         <surname>Poettering</surname>
  36         <email>lennart@poettering.net</email>
  37       </author>
  38     </authorgroup>
  39   </refentryinfo>
  40
  41   <refmeta>
  42     <refentrytitle>systemd-system-update-generator</refentrytitle>
  43     <manvolnum>8</manvolnum>
  44   </refmeta>
  45
  46   <refnamediv>
  47     <refname>systemd-system-update-generator</refname>
  48     <refpurpose>Generator for redirecting boot to offline update mode</refpurpose>
  49   </refnamediv>
  50
  51   <refsynopsisdiv>
  52     <para><filename>&rootlibexecdir;/system-generators/systemd-system-update-generator</filename></para>
  53   </refsynopsisdiv>
  54
  55   <refsect1>
  56     <title>Description</title>
  57
  58     <para><filename>systemd-system-update-generator</filename> is a
  59     generator that automatically redirects the boot process to
  60     <filename>system-update.target</filename> if
  61     <filename>/system-update</filename> exists. This is required to
  62     implement the logic explained in the <ulink
  63     url="http://freedesktop.org/wiki/Software/systemd/SystemUpdates">System
  64     Updates Specification</ulink>.
  65     </para>
  66
  67     <para><filename>systemd-system-update-generator</filename> implements
  68     <citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
  69   </refsect1>
  70
  71   <refsect1>
  72     <title>See Also</title>
  73     <para>
  74       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  75       <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>
  76     </para>
  77   </refsect1>
  78
  79 </refentry>