mirror of
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71 lines
3.6 KiB
XML
71 lines
3.6 KiB
XML
<?xml version="1.0"?>
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<!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
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<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
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<refentry id="systemd-remount-fs.service">
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<refentryinfo>
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<title>systemd-remount-fs.service</title>
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<productname>systemd</productname>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-remount-fs.service</refentrytitle>
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<manvolnum>8</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-remount-fs.service</refname>
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<refname>systemd-remount-fs</refname>
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<refpurpose>Remount root and kernel file systems</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>systemd-remount-fs.service</filename></para>
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<para><filename>/usr/lib/systemd/systemd-remount-fs</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><filename>systemd-remount-fs.service</filename> is an early boot service that applies mount options
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listed in <citerefentry
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project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>, or
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gathered from the partition table (when
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<citerefentry><refentrytitle>systemd-gpt-auto-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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is active) to the root file system, the <filename>/usr/</filename> file system, and the kernel API file
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systems. This is required so that the mount options of these file systems — which are pre-mounted by the
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kernel, the initrd, container environments or system manager code — are updated to those
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configured in <filename>/etc/fstab</filename> and the other sources. This service ignores normal file
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systems and only changes the root file system (i.e. <filename>/</filename>), <filename>/usr/</filename>,
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and the virtual kernel API file systems such as <filename>/proc/</filename>, <filename>/sys/</filename> or
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<filename>/dev/</filename>. This service executes no operation if no configuration is found
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(<filename>/etc/fstab</filename> does not exist or lists no entries for the mentioned file systems, or
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the partition table does not contain relevant entries).</para>
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<para>For a longer discussion of kernel API file systems see
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<ulink url="https://systemd.io/API_FILE_SYSTEMS">API
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File Systems</ulink>.</para>
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<para>Note: <filename>systemd-remount-fs.service</filename> is usually pulled in by
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<citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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hence it is also affected by the kernel command line option <varname>fstab=</varname>, which may be used
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to disable the generator. It may also pulled in by
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<citerefentry><refentrytitle>systemd-gpt-auto-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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which is affected by <varname>systemd.gpt_auto</varname> and other options.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para><simplelist type="inline">
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<member><citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
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<member><citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry></member>
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<member><citerefentry project='man-pages'><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
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<member><citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
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<member><citerefentry><refentrytitle>systemd-gpt-auto-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry></member>
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</simplelist></para>
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</refsect1>
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</refentry>
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