fsck.minix(8) - phpMan

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FSCK(8)                               System Administration                               FSCK(8)



NAME
       fsck.minix - check consistency of Minix filesystem

SYNOPSIS
       fsck.minix [-larvsmf] device

DESCRIPTION
       fsck.minix  performs a consistency check for the Linux MINIX filesystem.  The current ver-
       sion supports the 14 character and 30 character filename options.

       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 (and remember that the ker-
       nel can write to it 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.  Since Linux does not currently
       have raw devices, there is no need to reboot at this time.

WARNING
       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 (i.e., the root filesystem), make sure nothing is writ-
       ing to the disk, and that no files are "zombies" waiting for deletion.

OPTIONS
       -l     List all filenames.

       -r     Perform interactive repairs.

       -a     Perform automatic repairs.  (This option implies -r 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     Be verbose.

       -s     Output super-block information.

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

       -f     Force a filesystem check even if the filesystem was marked as valid  (this  marking
              is done by the kernel when the filesystem is unmounted).

SEE ALSO
       fsck(8), fsck.ext2(8), mkfs(8), mkfs.minix(8), mkfs.ext2(8), reboot(8)

DIAGNOSTICS
       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
       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

       In point of fact, only 0, 3, 4, 7, 8, and 16 can ever be returned.

AUTHOR
       Linus Torvalds (torvalds AT cs.fi)
       Error code values by Rik Faith (faith AT cs.edu)
       Added support for filesystem valid flag: Dr. Wettstein (greg%wind.uucp AT plains.edu)
       Check  to  prevent  fsck  of  mounted  filesystem   added   by   Daniel   Quinlan   (quin-
       lan AT yggdrasil.com)
       Minix  v2  fs support by Andreas Schwab (schwab AT issan.de), updated
       by Nicolai Langfeldt (janl AT math.no)
       Portability patch by Russell King (rmk AT ecs.uk).

AVAILABILITY
       The  fsck.minix  command  is  part  of  the  util-linux  package  and  is  available  from
       ftp://ftp.kernel.org/pub/linux/utils/util-linux/.



util-linux                                  July 1996                                     FSCK(8)

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