man/systemd-remount-fs.service.xml

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   9   Copyright 2012 Lennart Poettering
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  24 <refentry id="systemd-remount-fs.service">
  25
  26   <refentryinfo>
  27     <title>systemd-remount-fs.service</title>
  28     <productname>systemd</productname>
  29
  30     <authorgroup>
  31       <author>
  32         <contrib>Developer</contrib>
  33         <firstname>Lennart</firstname>
  34         <surname>Poettering</surname>
  35         <email>lennart@poettering.net</email>
  36       </author>
  37     </authorgroup>
  38   </refentryinfo>
  39
  40   <refmeta>
  41     <refentrytitle>systemd-remount-fs.service</refentrytitle>
  42     <manvolnum>8</manvolnum>
  43   </refmeta>
  44
  45   <refnamediv>
  46     <refname>systemd-remount-fs.service</refname>
  47     <refname>systemd-remount-fs</refname>
  48     <refpurpose>Remount root and kernel file systems</refpurpose>
  49   </refnamediv>
  50
  51   <refsynopsisdiv>
  52     <para><filename>systemd-remount-fs.service</filename></para>
  53     <para><filename>/usr/lib/systemd/systemd-remount-fs</filename></para>
  54   </refsynopsisdiv>
  55
  56   <refsect1>
  57     <title>Description</title>
  58
  59     <para><filename>systemd-remount-fs.service</filename> is an
  60     early boot service that applies mount options listed in
  61     <citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>
  62     to the root file system, the <filename>/usr</filename> file system,
  63     and the kernel API file systems. This is required so that the
  64     mount options of these file systems — which are pre-mounted by
  65     the kernel, the initial RAM disk, container environments or system
  66     manager code — are updated to those listed in
  67     <filename>/etc/fstab</filename>. This service ignores normal file
  68     systems and only changes the root file system (i.e.
  69     <filename>/</filename>), <filename>/usr</filename> and the virtual
  70     kernel API file systems such as <filename>/proc</filename>,
  71     <filename>/sys</filename> or <filename>/dev</filename>. This
  72     service executes no operation if <filename>/etc/fstab</filename>
  73     does not exist or lists no entries for the mentioned file
  74     systems.</para>
  75
  76     <para>For a longer discussion of kernel API file systems see
  77     <ulink url="https://www.freedesktop.org/wiki/Software/systemd/APIFileSystems">API
  78     File Systems</ulink>.</para>
  79   </refsect1>
  80
  81   <refsect1>
  82     <title>See Also</title>
  83     <para>
  84       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  85       <citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
  86       <citerefentry project='man-pages'><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>
  87     </para>
  88   </refsect1>
  89
  90 </refentry>