man/systemd-remount-fs.service.xml

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   7   Copyright 2012 Lennart Poettering
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  22 <refentry id="systemd-remount-fs.service">
  23
  24   <refentryinfo>
  25     <title>systemd-remount-fs.service</title>
  26     <productname>systemd</productname>
  27
  28     <authorgroup>
  29       <author>
  30         <contrib>Developer</contrib>
  31         <firstname>Lennart</firstname>
  32         <surname>Poettering</surname>
  33         <email>lennart@poettering.net</email>
  34       </author>
  35     </authorgroup>
  36   </refentryinfo>
  37
  38   <refmeta>
  39     <refentrytitle>systemd-remount-fs.service</refentrytitle>
  40     <manvolnum>8</manvolnum>
  41   </refmeta>
  42
  43   <refnamediv>
  44     <refname>systemd-remount-fs.service</refname>
  45     <refname>systemd-remount-fs</refname>
  46     <refpurpose>Remount root and kernel file systems</refpurpose>
  47   </refnamediv>
  48
  49   <refsynopsisdiv>
  50     <para><filename>systemd-remount-fs.service</filename></para>
  51     <para><filename>/usr/lib/systemd/systemd-remount-fs</filename></para>
  52   </refsynopsisdiv>
  53
  54   <refsect1>
  55     <title>Description</title>
  56
  57     <para><filename>systemd-remount-fs.service</filename> is an
  58     early boot service that applies mount options listed in
  59     <citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>
  60     to the root file system, the <filename>/usr</filename> file system,
  61     and the kernel API file systems. This is required so that the
  62     mount options of these file systems — which are pre-mounted by
  63     the kernel, the initial RAM disk, container environments or system
  64     manager code — are updated to those listed in
  65     <filename>/etc/fstab</filename>. This service ignores normal file
  66     systems and only changes the root file system (i.e.
  67     <filename>/</filename>), <filename>/usr</filename> and the virtual
  68     kernel API file systems such as <filename>/proc</filename>,
  69     <filename>/sys</filename> or <filename>/dev</filename>. This
  70     service executes no operation if <filename>/etc/fstab</filename>
  71     does not exist or lists no entries for the mentioned file
  72     systems.</para>
  73
  74     <para>For a longer discussion of kernel API file systems see
  75     <ulink url="https://www.freedesktop.org/wiki/Software/systemd/APIFileSystems">API
  76     File Systems</ulink>.</para>
  77   </refsect1>
  78
  79   <refsect1>
  80     <title>See Also</title>
  81     <para>
  82       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  83       <citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
  84       <citerefentry project='man-pages'><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>
  85     </para>
  86   </refsect1>
  87
  88 </refentry>