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