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man: beef up systemd-fsck description

This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2014-06-28 13:21:01 -04:00
parent 8eea868708
commit a17f2dc15b
1 changed files with 43 additions and 15 deletions
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58
man/systemd-fsck@.service.xml
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@ -56,21 +56,41 @@
<refsect1>
<title>Description</title>
<para><filename>systemd-fsck@.service</filename> is a
service responsible for file system checks. It is
instantiated for each device that requires a file
system
check. <filename>systemd-fsck-root.service</filename> is
responsible for file system checks on the root
file system. The root file system check is performed
before the other file systems. Either service is enabled
at boot if passno in <filename>/etc/fstab</filename> for
the file system is set to a value greater than zero.</para>
<para><filename>systemd-fsck@.service</filename> and
<filename>systemd-fsck-root.service</filename> are
services responsible for file system checks. They are
instantiated for each device that is configured for
file system checking.
<filename>systemd-fsck-root.service</filename> is
responsible for file system checks on the root file
system, but in only if the root filesystem wasn't
checked in the initramfs.
<filename>systemd-fsck@.service</filename> is used for
all other file systems and for the root file system in
the initramfs.</para>
<para><filename>systemd-fsck</filename> will
forward file system checking progress to the
console. If a file system check fails, emergency mode
is activated, by isolating to
<para>Those services are started at boot if
<option>passno</option> in
<filename>/etc/fstab</filename> for the file system is
set to a value greater than zero. The file system
check for root is performed before the other file
systems. Other file systems may be checked in
parallel, except when they are one the same rotating
disk.</para>
<para><filename>systemd-fsck</filename> does not know
any details about specific filesystems, and simply
executes file system checkers specific to each
filesystem type (<filename>/sbin/fsck.*</filename>).
This helper will decide if the filesystem should
actually be checked based on the time since last
check, number of mounts, unclean unmount, etc.</para>
<para><filename>systemd-fsck</filename> will forward
file system checking progress to the console. If a
file system check fails for a service without
<option>nofail</option>, emergency mode is activated,
by isolating to
<filename>emergency.target</filename>.</para>
</refsect1>
@ -122,7 +142,15 @@
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fsck</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-quotacheck.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
<citerefentry><refentrytitle>systemd-quotacheck.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fsck.btrfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fsck.cramfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fsck.ext4</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fsck.fat</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fsck.hfsplus</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fsck.minix</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fsck.ntfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fsck.xfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>
</para>
</refsect1>