systemd/man/systemd-remount-fs.service.xml

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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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  Copyright 2012 Lennart Poettering

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<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>
                <refentrytitle>systemd-remount-fs.service</refentrytitle>
                <manvolnum>8</manvolnum>
        </refmeta>

        <refnamediv>
                <refname>systemd-remount-fs.service</refname>
                <refname>systemd-remount-fs</refname>
                <refpurpose>Remount root and kernel file systems</refpurpose>
        </refnamediv>

        <refsynopsisdiv>
                <para><filename>systemd-remount-fs.service</filename></para>
                <para><filename>/usr/lib/systemd/systemd-remount-fs</filename></para>
        </refsynopsisdiv>

        <refsect1>
                <title>Description</title>

                <para><filename>systemd-remount-fs.service</filename>
                is an early-boot service that applies mount options
                listed in
                <citerefentry><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>For a longer discussion of kernel API file
                systems see <ulink
                url="http://www.freedesktop.org/wiki/Software/systemd/APIFileSystems">API
                File Systems</ulink>.</para>
        </refsect1>

        <refsect1>
                <title>See Also</title>
                <para>
                        <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                        <citerefentry><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                        <citerefentry><refentrytitle>mount</refentrytitle><manvolnum>8</manvolnum></citerefentry>
                </para>
        </refsect1>

</refentry>