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NAME | SYNOPSIS | DESCRIPTION | KERNEL COMMAND LINE | SEE ALSO | COLOPHON |
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SYSTEMD-FSCK@.SERVICE(8) systemd-fsck@.service SYSTEMD-FSCK@.SERVICE(8)
systemd-fsck@.service, systemd-fsck-root.service, systemd-fsck -
File system checker logic
systemd-fsck@.service
systemd-fsck-root.service
/usr/lib/systemd/systemd-fsck
systemd-fsck@.service and systemd-fsck-root.service are services
responsible for file system checks. They are instantiated for
each device that is configured for file system checking.
systemd-fsck-root.service is responsible for file system checks
on the root file system, but only if the root filesystem was not
checked in the initrd. systemd-fsck@.service is used for all
other file systems and for the root file system in the initrd.
These services are started at boot if passno in /etc/fstab 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 on the same rotating disk.
systemd-fsck does not know any details about specific
filesystems, and simply executes file system checkers specific to
each filesystem type (/sbin/fsck.type). These checkers will
decide if the filesystem should actually be checked based on the
time since last check, number of mounts, unclean unmount, etc.
systemd-fsck-root.service will activate reboot.target if
/sbin/fsck returns the "System should reboot" condition, or
emergency.target if /sbin/fsck returns the "Filesystem errors
left uncorrected" condition.
systemd-fsck@.service will fail if /sbin/fsck returns with either
"System should reboot" or "Filesystem errors left uncorrected"
conditions. For filesystems listed in /etc/fstab without "nofail"
or "noauto" options, "local-fs.target" will then activate
emergency.target.
systemd-fsck understands these kernel command line parameters:
fsck.mode=
One of "auto", "force", "skip". Controls the mode of
operation. The default is "auto", and ensures that file
system checks are done when the file system checker deems
them necessary. "force" unconditionally results in full file
system checks. "skip" skips any file system checks.
fsck.repair=
One of "preen", "yes", "no". Controls the mode of operation.
The default is "preen", and will automatically repair
problems that can be safely fixed. "yes" will answer yes to
all questions by fsck and "no" will answer no to all
questions.
systemd(1), fsck(8), systemd-quotacheck.service(8),
fsck.btrfs(8), fsck.cramfs(8), fsck.ext4(8), fsck.fat(8),
fsck.hfsplus(8), fsck.minix(8), fsck.ntfs(8), fsck.xfs(8)
This page is part of the systemd (systemd system and service
manager) project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have
a bug report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
This page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2022-12-17. (At that
time, the date of the most recent commit that was found in the
repository was 2022-12-16.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
systemd 252 SYSTEMD-FSCK@.SERVICE(8)
Pages that refer to this page: kernel-command-line(7), systemd.directives(7), systemd.index(7), systemd-quotacheck.service(8)
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HTML rendering created 2022-12-18 by Michael Kerrisk, author of The Linux Programming Interface, maintainer of the Linux man-pages project. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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