E2FSCK
Section: Maintenance Commands (8)
Updated: November 1993
Index
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NAME
e2fsck - check a Linux second extended file system
SYNOPSIS
e2fsck
[
-B
super-block-location
]
[
-acdflmrstv
]
[
-b
filename
]
device
DESCRIPTION
e2fsck
is used to check a Linux second extended file system.
device
is the special file corresponding to the device (e.g /dev/hdXX).
OPTIONS
- -B super-block-location
-
Read the super block from the block specified in
super-block-location.
super-block-location
is expressed in terms of 1024 bytes blocks.
On a second extended file system, there is usually one super block backup per
8192 blocks. Thus, the first backup can be used with
-B 8193
, the second can be used with
-B 16385
, and so on.
- -a
-
Automatically repair the file system without any questions (use
this option with caution).
- -b filename
-
Read the bad blocks list from
filename.
- -c
-
Check the file system for bad blocks.
- -d
-
Print debugging output (useless unless you are debugging
e2fsck
).
- -f
-
Force checking even if the file system seems clean.
- -l
-
List all the file names in the file system.
- -m
-
Check that the device is not mounted.
- -r
-
Interactively repair the file system (ask for confirmations).
- -s
-
List the super block before checking the file system.
- -t
-
Check the file system for bad blocks.
- -v
-
Verbose mode.
EXIT CODE
The exit code returned by
e2fsck
is the sum of the following conditions:
0 - No errors
1 - File system errors corrected
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
AUTHOR
e2fsck
is based on
efsck(8)
which is based itself on
fsck(8)
written by Linus Torvalds <torvalds@cs.helsinki.fi> for the
minix file system.
Remy Card <card@masi.ibp.fr> has adapted it for the second extended file
system and is maintaining it.
Wayne Davison <davison@borland.com> has contributed lots of nice
features.
BUGS
Please report bugs to the author.
AVAILABILITY
e2fsck
is available for anonymous ftp from ftp.ibp.fr (132.227.60.2) in
/pub/linux/BETA/ext2fs.
SEE ALSO
mke2fs(8),
tune2fs(8)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- EXIT CODE
-
- AUTHOR
-
- BUGS
-
- AVAILABILITY
-
- SEE ALSO
-
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