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Linux 2.6 - man page for fsck.minix (linux section 8)

FSCK(8) 			    Linux Programmer's Manual				  FSCK(8)

       fsck.minix - a file system consistency checker for Linux

       fsck.minix [-larvsmf] device

       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 file system 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 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 file system 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.

       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.

       -l     Lists all filenames

       -r     Performs interactive repairs

       -a     Performs 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 file system damage.

       -v     Verbose

       -s     Outputs super-block information

       -m     Activates MINIX-like "mode not cleared" warnings

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

       fsck(8),  fsck.ext(8),  fsck.ext2(8),  fsck.xiafs(8), mkfs(8), mkfs.minix(8), mkfs.ext(8),
       mkfs.ext2(8), mkfs.xiafs(8), reboot(8)

       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 file system, fsck.minix will print "bad magic number  in

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

       0      No errors

       3      File system errors corrected, system should be rebooted if file system was mounted

       4      File system errors left uncorrected

       8      Operational error

       16     Usage or syntax error

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

       Linus Torvalds (torvalds@cs.helsinki.fi)
       Error code values by Rik Faith (faith@cs.unc.edu)
       Added support for file system valid flag: Dr. Wettstein (greg%wind.uucp@plains.nodak.edu)
       Check   to   prevent   fsck   of   mounted  filesystem  added  by  Daniel  Quinlan  (quin-
       Minix v2 fs support by Andreas Schwab  (schwab@issan.informatik.uni-dortmund.de),  updated
       by Nicolai Langfeldt (janl@math.uio.no)
       Portability patch by Russell King (rmk@ecs.soton.ac.uk).

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

Util-Linux 2.6				   2 July 1996					  FSCK(8)

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