GNU/Linux man pages
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GNU/Linux |
RedHat 9.0(Shrike) |
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fsck.jfs(8) |
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fsck.jfs − initiate replay of the JFS transaction log, and check and repair a JFS formatted 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. /dev/hdb1).
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.
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−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 fsck.jfs is called at boot time. | ||
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−f |
Replay the transaction log and force checking even if the file system appears clean. Repair all problems automatically. | ||
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−n |
Open the file system read only. Do not replay the transaction log. Report errors, but do not repair them. | ||
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−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 further problems). | ||
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−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. | ||
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−v |
Verbose messaging - print details and debug statements to stdout. | ||
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−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 errors:
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:
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0 |
No errors | ||
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1 |
File system errors corrected and/or transaction log replayed successfully | ||
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2 |
File system errors corrected, system should be rebooted if file system was mounted | ||
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4 |
File system errors left uncorrected | ||
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8 |
Operational error | ||
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16 |
Usage or syntax error | ||
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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:
http://oss.software.ibm.com/jfs
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:
http://oss.software.ibm.com/jfs
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fsck.jfs(8) | |