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1 | <?xml version="1.0"?> |
2 | <!--*-nxml-*--> | |
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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 | ]> | |
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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-fsck@.service"> | |
26 | ||
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27 | <refentryinfo> |
28 | <title>systemd-fsck@.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-fsck@.service</refentrytitle> | |
43 | <manvolnum>8</manvolnum> | |
44 | </refmeta> | |
45 | ||
46 | <refnamediv> | |
47 | <refname>systemd-fsck@.service</refname> | |
48 | <refname>systemd-fsck-root.service</refname> | |
49 | <refname>systemd-fsck</refname> | |
50 | <refpurpose>File system checker logic</refpurpose> | |
51 | </refnamediv> | |
52 | ||
53 | <refsynopsisdiv> | |
54 | <para><filename>systemd-fsck@.service</filename></para> | |
55 | <para><filename>systemd-fsck-root.service</filename></para> | |
681eb9cf | 56 | <para><filename>&rootlibexecdir;/systemd-fsck</filename></para> |
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57 | </refsynopsisdiv> |
58 | ||
59 | <refsect1> | |
60 | <title>Description</title> | |
61 | ||
62 | <para><filename>systemd-fsck@.service</filename> and | |
63 | <filename>systemd-fsck-root.service</filename> are services | |
64 | responsible for file system checks. They are instantiated for each | |
65 | device that is configured for file system checking. | |
66 | <filename>systemd-fsck-root.service</filename> is responsible for | |
67 | file system checks on the root file system, but in only if the | |
68 | root filesystem wasn't checked in the initramfs. | |
69 | <filename>systemd-fsck@.service</filename> is used for all other | |
70 | file systems and for the root file system in the initramfs.</para> | |
71 | ||
72 | <para>Those services are started at boot if | |
73 | <option>passno</option> in <filename>/etc/fstab</filename> for the | |
74 | file system is set to a value greater than zero. The file system | |
75 | check for root is performed before the other file systems. Other | |
76 | file systems may be checked in parallel, except when they are one | |
77 | the same rotating disk.</para> | |
78 | ||
79 | <para><filename>systemd-fsck</filename> does not know any details | |
80 | about specific filesystems, and simply executes file system | |
81 | checkers specific to each filesystem type | |
82 | (<filename>/sbin/fsck.*</filename>). This helper will decide if | |
83 | the filesystem should actually be checked based on the time since | |
84 | last check, number of mounts, unclean unmount, etc.</para> | |
85 | ||
96d9117a | 86 | <para>If a file system check fails for a service without |
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87 | <option>nofail</option>, emergency mode is activated, by isolating |
88 | to <filename>emergency.target</filename>.</para> | |
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89 | </refsect1> |
90 | ||
91 | <refsect1> | |
92 | <title>Kernel Command Line</title> | |
93 | ||
94 | <para><filename>systemd-fsck</filename> understands one kernel | |
95 | command line parameter:</para> | |
96 | ||
97 | <variablelist class='kernel-commandline-options'> | |
98 | <varlistentry> | |
99 | <term><varname>fsck.mode=</varname></term> | |
100 | ||
101 | <listitem><para>One of <literal>auto</literal>, | |
102 | <literal>force</literal>, <literal>skip</literal>. Controls | |
103 | the mode of operation. The default is <literal>auto</literal>, | |
104 | and ensures that file system checks are done when the file | |
105 | system checker deems them necessary. <literal>force</literal> | |
106 | unconditionally results in full file system checks. | |
107 | <literal>skip</literal> skips any file system | |
108 | checks.</para></listitem> | |
109 | </varlistentry> | |
110 | ||
111 | <varlistentry> | |
112 | <term><varname>fsck.repair=</varname></term> | |
113 | ||
114 | <listitem><para>One of <literal>preen</literal>, | |
115 | <literal>yes</literal>, <literal>no</literal>. Controls the | |
116 | mode of operation. The default is <literal> preen</literal>, | |
117 | and will automatically repair problems that can be safely | |
118 | fixed. <literal>yes </literal> will answer yes to all | |
119 | questions by fsck and <literal>no</literal> will answer no to | |
120 | all questions. </para></listitem> | |
121 | </varlistentry> | |
122 | </variablelist> | |
123 | </refsect1> | |
124 | ||
125 | <refsect1> | |
126 | <title>See Also</title> | |
127 | <para> | |
128 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
a80170f5 | 129 | <citerefentry project='man-pages'><refentrytitle>fsck</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
798d3a52 | 130 | <citerefentry><refentrytitle>systemd-quotacheck.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
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131 | <citerefentry project='man-pages'><refentrytitle>fsck.btrfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
132 | <citerefentry project='man-pages'><refentrytitle>fsck.cramfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
133 | <citerefentry project='man-pages'><refentrytitle>fsck.ext4</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
134 | <citerefentry project='man-pages'><refentrytitle>fsck.fat</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
135 | <citerefentry project='man-pages'><refentrytitle>fsck.hfsplus</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
136 | <citerefentry project='man-pages'><refentrytitle>fsck.minix</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
137 | <citerefentry project='man-pages'><refentrytitle>fsck.ntfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
138 | <citerefentry project='man-pages'><refentrytitle>fsck.xfs</refentrytitle><manvolnum>8</manvolnum></citerefentry> | |
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139 | </para> |
140 | </refsect1> | |
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141 | |
142 | </refentry> |