mirror of
https://github.com/systemd/systemd-stable.git
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32e2767080
In most cases we refernced the concept as "initrd". Let's convert most
remaining uses of "initramfs" to "initrd" too, to stay internally
consistent.
This leaves "initramfs" only where it's relevant to explain historical
concepts or where "initramfs" is part of the API (i.e. in
/run/initramfs).
Follow-up for: b66a6e1a58
121 lines
5.7 KiB
XML
121 lines
5.7 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/4.2/docbookx.dtd">
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<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
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<refentry id="systemd-fsck@.service">
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<refentryinfo>
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<title>systemd-fsck@.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-fsck@.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-fsck@.service</refname>
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<refname>systemd-fsck-root.service</refname>
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<refname>systemd-fsck</refname>
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<refpurpose>File system checker logic</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>systemd-fsck@.service</filename></para>
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<para><filename>systemd-fsck-root.service</filename></para>
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<para><filename>/usr/lib/systemd/systemd-fsck</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-fsck@.service</filename> and <filename>systemd-fsck-root.service</filename> are
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services responsible for file system checks. They are instantiated for each device that is configured for
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file system checking. <filename>systemd-fsck-root.service</filename> is responsible for file system
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checks on the root file system, but only if the root filesystem was not checked in the initrd.
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<filename>systemd-fsck@.service</filename> is used for all other file systems and for the root file
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system in the initrd.</para>
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<para>These services are started at boot if
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<option>passno</option> in <filename>/etc/fstab</filename> for the
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file system is set to a value greater than zero. The file system
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check for root is performed before the other file systems. Other
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file systems may be checked in parallel, except when they are on
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the same rotating disk.</para>
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<para><filename>systemd-fsck</filename> does not know any details
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about specific filesystems, and simply executes file system
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checkers specific to each filesystem type
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(<filename>/sbin/fsck.<replaceable>type</replaceable></filename>). These checkers will decide if
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the filesystem should actually be checked based on the time since
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last check, number of mounts, unclean unmount, etc.</para>
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<para><filename>systemd-fsck-root.service</filename> will activate
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<filename>reboot.target</filename> if <filename>/sbin/fsck</filename>
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returns the "System should reboot" condition, or
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<filename>emergency.target</filename> if <filename>/sbin/fsck</filename>
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returns the "Filesystem errors left uncorrected" condition.</para>
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<para><filename>systemd-fsck@.service</filename> will fail if
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<filename>/sbin/fsck</filename> returns with either "System should reboot"
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or "Filesystem errors left uncorrected" conditions. For filesystems
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listed in <filename>/etc/fstab</filename> without <literal>nofail</literal>
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or <literal>noauto</literal> options, <literal>local-fs.target</literal>
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will then activate <filename>emergency.target</filename>.</para>
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</refsect1>
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<refsect1>
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<title>Kernel Command Line</title>
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<para><filename>systemd-fsck</filename> understands these kernel
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command line parameters:</para>
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<variablelist class='kernel-commandline-options'>
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<varlistentry>
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<term><varname>fsck.mode=</varname></term>
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<listitem><para>One of <literal>auto</literal>,
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<literal>force</literal>, <literal>skip</literal>. Controls
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the mode of operation. The default is <literal>auto</literal>,
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and ensures that file system checks are done when the file
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system checker deems them necessary. <literal>force</literal>
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unconditionally results in full file system checks.
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<literal>skip</literal> skips any file system
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checks.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>fsck.repair=</varname></term>
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<listitem><para>One of <literal>preen</literal>,
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<literal>yes</literal>, <literal>no</literal>. Controls the
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mode of operation. The default is <literal>preen</literal>,
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and will automatically repair problems that can be safely
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fixed. <literal>yes</literal> will answer yes to all
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questions by fsck and <literal>no</literal> will answer no to
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all questions. </para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>fsck</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-quotacheck.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>fsck.btrfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>fsck.cramfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>fsck.ext4</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>fsck.fat</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>fsck.hfsplus</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>fsck.minix</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>fsck.ntfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>fsck.xfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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