FSCK.MINIX(8)               System Administration              FSCK.MINIX(8)

NAME         top

       fsck.minix - check consistency of Minix filesystem

SYNOPSIS         top

       fsck.minix [options] device

DESCRIPTION         top

       fsck.minix performs a consistency check for the Linux MINIX

       The program assumes the filesystem is quiescent.  fsck.minix should
       not be used on a mounted device unless you can be sure nobody is
       writing to it.  Remember that the kernel can write to device when it
       searches for files.

       The device name will usually have the following form:

              /dev/hda[1–63]   IDE disk 1
              /dev/hdb[1–63]   IDE disk 2
              /dev/sda[1–15]   SCSI disk 1
              /dev/sdb[1–15]   SCSI disk 2

       If the filesystem was changed, i.e., repaired, then fsck.minix will
       print "FILE SYSTEM HAS CHANGED" and will sync(2) three times before
       exiting.  There is no need to reboot after check.

WARNING         top

       fsck.minix should not be used on a mounted filesystem.  Using
       fsck.minix on a mounted filesystem is very dangerous, due to the
       possibility that deleted files are still in use, and can seriously
       damage a perfectly good filesystem!  If you absolutely have to run
       fsck.minix on a mounted filesystem, such as the root filesystem, make
       sure nothing is writing to the disk, and that no files are "zombies"
       waiting for deletion.

OPTIONS         top

       -l, --list
              List all filenames.

       -r, --repair
              Perform interactive repairs.

       -a, --auto
              Perform automatic repairs.  This option implies --repair and
              serves to answer all of the questions asked with the default.
              Note that this can be extremely dangerous in the case of
              extensive filesystem damage.

       -v, --verbose
              Be verbose.

       -s, --super
              Output super-block information.

       -m, --uncleared
              Activate MINIX-like "mode not cleared" warnings.

       -f, --force
              Force a filesystem check even if the filesystem was marked as
              valid.  Marking is done by the kernel when the filesystem is

       -V, --version
              Display version information and exit.

       -h, --help
              Display help text and exit.

DIAGNOSTICS         top

       There are numerous diagnostic messages.  The ones mentioned here are
       the most commonly seen in normal usage.

       If the device does not exist, fsck.minix will print "unable to read
       super block".  If the device exists, but is not a MINIX filesystem,
       fsck.minix will print "bad magic number in super-block".

EXIT CODES         top

       The exit code returned by fsck.minix is the sum of the following:

              0      No errors
              3      Filesystem errors corrected, system should be rebooted
                     if filesystem was mounted
              4      Filesystem errors left uncorrected
              7      Combination of exit codes 3 and 4
              8      Operational error
              16     Usage or syntax error

AUTHORS         top

       Linus Torvalds ⟨⟩
       Error code values by Rik Faith ⟨⟩
       Added support for filesystem valid flag: Dr. Wettstein ⟨greg%wind.⟩.
       Check to prevent fsck of mounted filesystem added by Daniel Quinlan
       Minix v2 fs support by Andreas Schwab ⟨schwab@issan.informatik.uni-⟩, updated by Nicolai Langfeldt ⟨⟩.
       Portability patch by Russell King ⟨⟩.

SEE ALSO         top

       fsck(8), fsck.ext2(8), mkfs(8), mkfs.ext2(8), mkfs.minix(8),

AVAILABILITY         top

       The fsck.minix command is part of the util-linux package and is
       available from Linux Kernel Archive 

COLOPHON         top

       This page is part of the util-linux (a random collection of Linux
       utilities) project.  Information about the project can be found at 
       ⟨⟩.  If you have a
       bug report for this manual page, send it to  This page was obtained from the
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util-linux                        June 2015                    FSCK.MINIX(8)