fsck.jfs man page on Archlinux

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jfs_fsck(8)		JFS utility - file system check		   jfs_fsck(8)

       jfs_fsck	 -  initiate  replay of the JFS transaction log, and check and
       repair a JFS formatted device

       jfs_fsck [ -afnpvV ] [ -j journal_device ] [ --omit_journal_replay ]  [
       --replay_journal_only ] device

       jfs_fsck is used to replay the JFS transaction log, check a JFS format‐
       ted device for errors, and fix any errors found.

       device is the special file name corresponding to the actual  device  to
       be checked (e.g. /dev/hdb1).

       jfs_fsck must be run as root.

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

       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 equivalent to -p.   Autocheck  mode
	      is  typically  the  default mode used when jfs_fsck is called at
	      boot time.

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

       -j journal_device
	      Specify the journal device.

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

	      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 further 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.

	      Only  replay  the	 transaction log.  Do not continue with a full
	      file system check if the replay fails or if the file  system  is
	      still  dirty  even  after	 a  journal  replay.  In general, this
	      option should only be used for debugging purposes	 as  it	 could
	      leave the file system in an unmountable state.  This option can‐
	      not be used with -f, -n, or --omit_journal_replay.

       -v     Verbose messaging - print details and debug statements  to  std‐

       -V     Print version information and exit (regardless of any other cho‐
	      sen options).

       Check the 3rd partition on the 2nd hard disk, print  extended  informa‐
       tion  to	 stdout,  replay  the transaction log, force complete jfs_fsck
       checking, and give permission to repair all errors:

	      jfs_fsck -v -f /dev/hdb3

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

	      jfs_fsck -n /dev/hda5

       The exit code returned by jfs_fsck represents one of the following con‐

	0     No errors

	1     File system errors corrected  and/or  transaction	 log  replayed

	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 jfs_fsck, 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 jfs_fsck with	 the  -v  option  on  the  JFS

       fsck(8),	  jfs_mkfs(8),	jfs_fscklog(8),	 jfs_tune(8),  jfs_logdump(8),

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

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

			       October 29, 2002			   jfs_fsck(8)

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