man/systemd-hibernate-resume@.service.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">
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   5   SPDX-License-Identifier: LGPL-2.1+
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   7   This file is part of systemd.
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   9   Copyright 2014 Ivan Shapovalov
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  11   systemd is free software; you can redistribute it and/or modify it
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  24 <refentry id="systemd-hibernate-resume@.service" conditional='ENABLE_HIBERNATE'>
  25
  26   <refentryinfo>
  27     <title>systemd-hibernate-resume@.service</title>
  28     <productname>systemd</productname>
  29
  30     <authorgroup>
  31       <author>
  32         <contrib>Developer</contrib>
  33         <firstname>Ivan</firstname>
  34         <surname>Shapovalov</surname>
  35         <email>intelfx100@gmail.com</email>
  36       </author>
  37     </authorgroup>
  38   </refentryinfo>
  39
  40   <refmeta>
  41     <refentrytitle>systemd-hibernate-resume@.service</refentrytitle>
  42     <manvolnum>8</manvolnum>
  43   </refmeta>
  44
  45   <refnamediv>
  46     <refname>systemd-hibernate-resume@.service</refname>
  47     <refname>systemd-hibernate-resume</refname>
  48     <refpurpose>Resume from hibernation</refpurpose>
  49   </refnamediv>
  50
  51   <refsynopsisdiv>
  52     <para><filename>systemd-hibernate-resume@.service</filename></para>
  53     <para><filename>/usr/lib/systemd/systemd-hibernate-resume</filename></para>
  54   </refsynopsisdiv>
  55
  56   <refsect1>
  57     <title>Description</title>
  58
  59     <para><filename>systemd-hibernate-resume@.service</filename>
  60     initiates the resume from hibernation. It is instantiated with the
  61     device to resume from as the template argument.</para>
  62
  63     <para><filename>systemd-hibernate-resume</filename> only supports
  64     the in-kernel hibernation implementation, known as
  65     <ulink url="https://www.kernel.org/doc/Documentation/power/swsusp.txt">swsusp</ulink>.
  66     Internally, it works by writing the major:minor of specified
  67     device node to <filename>/sys/power/resume</filename>.</para>
  68
  69     <para>Failing to initiate a resume is not an error condition. It
  70     may mean that there was no resume image (e. g. if the system has
  71     been simply powered off and not hibernated). In such case, the
  72     boot is ordinarily continued.</para>
  73   </refsect1>
  74
  75   <refsect1>
  76     <title>See Also</title>
  77     <para>
  78       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  79       <citerefentry><refentrytitle>systemd-hibernate-resume-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
  80     </para>
  81   </refsect1>
  82
  83 </refentry>