# systemd-fsck-root.service(8) - man - phpman

SYSTEMD-FSCK@[.SERVICE(8)](https://www.chedong.com/phpMan.php/man/.SERVICE/8/markdown)                systemd-fsck@.service               SYSTEMD-FSCK@[.SERVICE(8)](https://www.chedong.com/phpMan.php/man/.SERVICE/8/markdown)



## NAME
       systemd-fsck@.service, systemd-fsck-root.service, systemd-fsck - File system checker logic

## SYNOPSIS
       systemd-fsck@.service

       systemd-fsck-root.service

       /lib/systemd/systemd-fsck

## DESCRIPTION
       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 initramfs.  systemd-fsck@.service is used
       for all other file systems and for the root file system in the initramfs.

       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.

       If a file system check fails for a service without **nofail**, emergency mode is activated, by
       isolating to emergency.target.

## KERNEL COMMAND LINE
       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.

## SEE ALSO
       [**systemd**(1)](https://www.chedong.com/phpMan.php/man/systemd/1/markdown), [**fsck**(8)](https://www.chedong.com/phpMan.php/man/fsck/8/markdown), [**systemd-quotacheck.service**(8)](https://www.chedong.com/phpMan.php/man/systemd-quotacheck.service/8/markdown), [**fsck.btrfs**(8)](https://www.chedong.com/phpMan.php/man/fsck.btrfs/8/markdown), [**fsck.cramfs**(8)](https://www.chedong.com/phpMan.php/man/fsck.cramfs/8/markdown),
       [**fsck.ext4**(8)](https://www.chedong.com/phpMan.php/man/fsck.ext4/8/markdown), [**fsck.fat**(8)](https://www.chedong.com/phpMan.php/man/fsck.fat/8/markdown), [**fsck.hfsplus**(8)](https://www.chedong.com/phpMan.php/man/fsck.hfsplus/8/markdown), [**fsck.minix**(8)](https://www.chedong.com/phpMan.php/man/fsck.minix/8/markdown), [**fsck.ntfs**(8)](https://www.chedong.com/phpMan.php/man/fsck.ntfs/8/markdown), [**fsck.xfs**(8)](https://www.chedong.com/phpMan.php/man/fsck.xfs/8/markdown)



systemd 249                                                                 SYSTEMD-FSCK@[.SERVICE(8)](https://www.chedong.com/phpMan.php/man/.SERVICE/8/markdown)