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RedHat 9 (Linux i386) - man page for fsck.jfs (redhat section 8)

fsck.jfs(8)			 JFS utility - file system check		      fsck.jfs(8)

       fsck.jfs  - initiate replay of the JFS transaction log, and check and repair a JFS format-
       ted device

       fsck.jfs [ -afnopvV ] device

       fsck.jfs is used to replay the JFS transaction log,  check  a  JFS  formatted  device  for
       errors, and fix any errors found.

       device  is  the	special  file name corresponding to the actual device to be checked (e.g.

       fsck.jfs must be run as root.

       fsck.jfs should only be used to check an unmounted file system or a file  system  that  is
       mounted	READ  ONLY.   Using  fsck.jfs to check a file system mounted other than READ ONLY
       could seriously damage the file system!

       If no options are selected, the default is -p.

       -a     Autocheck mode - Replay the transaction  log.   Do  not  continue  fsck  processing
	      unless the aggregate state is dirty or the log replay failed.  Functionally equiva-
	      lent to -p.  Autocheck mode is typically the default mode  used  when  fsck.jfs  is
	      called at boot time.

       -f     Replay  the  transaction	log  and  force  checking even if the file system appears
	      clean.  Repair all problems automatically.

       -n     Open the file system read only.  Do not replay the transaction log.  Report errors,
	      but do not repair them.

       -o     Omit the replay of the transaction log.  This option should not be used unless as a
	      last resort (i.e.  the log has been severely corrupted and replaying it causes fur-
	      ther problems).

       -p     Automatically  repair  ("preen")	the file system.  Replay the transaction log.  Do
	      not continue fsck processing unless the aggregate state is dirty or the log  replay
	      failed.  Functionally equivalent to -a.

       -v     Verbose messaging - print details and debug statements to stdout.

       -V     Print version information and exit (regardless of any other chosen options).

       Check the 3rd partition on the 2nd hard disk, print extended information to stdout, replay
       the transaction log, force complete fsck.jfs checking, and give permission to  repair  all

	      fsck.jfs -v -f /dev/hdb3

       Check the 5th partition on the 1st hard disk, and report, but do not repair, any errors:

	      fsck.jfs -n /dev/hda5

       The exit code returned by fsck.jfs represents one of the following conditions:

	0     No errors

	1     File system errors corrected and/or transaction log replayed successfully

	2     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

	128   Shared library error

       If  you	find  a  bug  in  JFS  or  fsck.jfs, please report it via the bug tracking system
       ("Report Bugs" section) of the JFS project web site:

       Please send as much pertinent information as possible, including the  complete  output  of
       running fsck.jfs with the -v option on the JFS device.

       fsck(8), mkfs.jfs(8), logdump(8), logredo(8), xchklog(8), xchkdmp(8), xpeek(8)

       Barry Arndt  (barndt@us.ibm.com)
       William Braswell, Jr.

       fsck.jfs is maintained by IBM.
       See the JFS project web site for more details:

					  March 1, 2002 			      fsck.jfs(8)

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