SYSTEMD-FSCK@.SERVICE(8)    systemd-fsck@.service   SYSTEMD-FSCK@.SERVICE(8)

NAME         top

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

SYNOPSIS         top




DESCRIPTION         top

       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 in only if the root filesystem wasn't
       checked in the initramfs.  systemd-fsck@.service is used for all
       other file systems and for the root file system in the initramfs.

       Those 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 one 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.*). This helper 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


       systemd-fsck understands one kernel command line parameter:

           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.
           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         top

       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)

COLOPHON         top

       This page is part of the systemd (systemd system and service manager)
       project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug
       report for this manual page, see 
       ⟨⟩.  This
       page was obtained from the project's upstream Git repository
       (git:// on 2015-10-19.  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
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       this COLOPHON (which is not part of the original manual page), send a
       mail to

systemd 222                                         SYSTEMD-FSCK@.SERVICE(8)