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.\" -*- nroff -*-
.\" Copyright 1993, 1994 by Theodore Ts'o. All Rights Reserved.
.\" This file may be copied under the terms of the GNU Public License.
.\"
.TH NEW-E2FSCK 8 "March 1994" "Version 0.5"
.SH NAME
e2fsck \- check a Linux second extended file system
.SH SYNOPSIS
.B e2fsck
[
.B \-panyrdfvtFV
]
[
.B \-b
.I superblock
]
[
.B \-B
.I blocksize
]
[
.B \-l|-L
.I bad_blocks_file
]
.I device
.SH DESCRIPTION
.B e2fsck
is used to check a Linux second extended file system.
.TP
.I device
is the special file corresponding to the device (e.g /dev/hdXX).
.SH OPTIONS
.TP
.I -b superblock
Instead of using the normal superblock, use the alternative superblock
specified by
.IR superblock .
.TP
.I -d
Print debugging output (useless unless you are debugging
.B e2fsck
).
.TP
.I -f
Force checking even if the file system seems clean.
.TP
.I -F
Flush the filesystem device's buffer caches before beginning. Only
really useful for doing e2fsck time trials.
.TP
.I -l filename
Add the blocks listed in the file specified by
.I filename
to the list of bad blocks.
.TP
.I -L filename
Set the bad blocks list to be the list of blocks specified by
.IR filename .
(This option is the same as the
.I -l
option, except the bad blocks list is cleared before the blocks listed
in the file are added to the bad blocks list.)
.TP
.I -n
Open the filesystem read-only, and assume an answer of ``no'' to all
questions. Allows
.B e2fsck
to be used non-interactively. (Note: if the
.I -l
or
.I -L
options are specified in addition to the
.I -n
option, then the filesystem will be opened read-write, to permit the
bad-blocks list to be updated. However, no other changes will be made
to the filesystem.)
.TP
.I -p
Automatically repair ("preen") the file system without any questions.
The
.I -a
option is provided for backwards compatibility.
.TP
.I -t
Print timing statistics for
.BR e2fsck .
If this option is used twice, additional timing statistics are printed
on a pass by pass basis.
.TP
.I -v
Verbose mode.
.TP
.I -V
Print version information and exit.
.TP
.I -y
Assume an answer of ``yes'' to all questions; allows
.B e2fsck
to be used non-interactively.
.SH EXIT CODE
The exit code returned by
.B e2fsck
is the sum of the following conditions:
.br
\ 0\ \-\ No errors
.br
\ 1\ \-\ File system errors corrected
.br
\ 2\ \-\ File system errors corrected, system should
.br
\ \ \ \ be rebooted if file system was mounted
.br
\ 4\ \-\ File system errors left uncorrected
.br
\ 8\ \-\ Operational error
.br
\ 16\ \-\ Usage or syntax error
.br
\ 128\ \-\ Shared library error
.br
.SH AUTHOR
This version of
.B e2fsck
is written by Theodore Ts'o <tytso@mit.edu>.
.SH SEE ALSO
.BR mke2fs (8),
.BR tune2fs (8)
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