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-<!--
- SPDX-License-Identifier: LGPL-2.1+
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+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!-- SPDX-License-Identifier: LGPL-2.1+ -->
<refentry id="systemd-remount-fs.service">
<refentryinfo>
<title>systemd-remount-fs.service</title>
<productname>systemd</productname>
-
- <authorgroup>
- <author>
- <contrib>Developer</contrib>
- <firstname>Lennart</firstname>
- <surname>Poettering</surname>
- <email>lennart@poettering.net</email>
- </author>
- </authorgroup>
</refentryinfo>
<refmeta>
<refsect1>
<title>Description</title>
- <para><filename>systemd-remount-fs.service</filename> is an
- early boot service that applies mount options listed in
- <citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>
- to the root file system, the <filename>/usr</filename> file system,
- and the kernel API file systems. This is required so that the
- mount options of these file systems — which are pre-mounted by
- the kernel, the initial RAM disk, container environments or system
- manager code — are updated to those listed in
- <filename>/etc/fstab</filename>. This service ignores normal file
- systems and only changes the root file system (i.e.
- <filename>/</filename>), <filename>/usr</filename> and the virtual
- kernel API file systems such as <filename>/proc</filename>,
- <filename>/sys</filename> or <filename>/dev</filename>. This
- service executes no operation if <filename>/etc/fstab</filename>
- does not exist or lists no entries for the mentioned file
- systems.</para>
+ <para><filename>systemd-remount-fs.service</filename> is an early boot service that applies mount options
+ listed in <citerefentry
+ project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>, or
+ gathered from the partition table (when
+ <citerefentry><refentrytitle>systemd-gpt-auto-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ is active) to the root file system, the <filename>/usr</filename> file system, and the kernel API file
+ systems. This is required so that the mount options of these file systems — which are pre-mounted by the
+ kernel, the initial RAM disk, container environments or system manager code — are updated to those
+ configured in <filename>/etc/fstab</filename> and the other sources. This service ignores normal file
+ systems and only changes the root file system (i.e. <filename>/</filename>), <filename>/usr</filename>,
+ and the virtual kernel API file systems such as <filename>/proc</filename>, <filename>/sys</filename> or
+ <filename>/dev</filename>. This service executes no operation if no configuration is found
+ (<filename>/etc/fstab</filename> does not exist or lists no entries for the mentioned file systems, or
+ the partition table does not contain relevant entries).</para>
<para>For a longer discussion of kernel API file systems see
<ulink url="https://www.freedesktop.org/wiki/Software/systemd/APIFileSystems">API
File Systems</ulink>.</para>
+
+ <para>Note: <filename>systemd-remount-fs.service</filename> is usually pulled in by
+ <citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ hence it is also affected by the kernel command line option <varname>fstab=</varname>, which may be used
+ to disable the generator. It may also pulled in by
+ <citerefentry><refentrytitle>systemd-gpt-auto-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ which is affected by <varname>systemd.gpt_auto</varname> and other options.</para>
</refsect1>
<refsect1>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
- <citerefentry project='man-pages'><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ <citerefentry project='man-pages'><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-gpt-auto-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
</para>
</refsect1>