51 lines
1.8 KiB
Groff
51 lines
1.8 KiB
Groff
.TH FSCK 1
|
|
.SH NAME
|
|
fsck, fsck1 \- perform file system consistency check
|
|
.SH SYNOPSIS
|
|
\fBfsck\fR [\fB\-aclmrs\fR]\fR [\fIdevice\fR] ...\fR
|
|
.br
|
|
.de FL
|
|
.TP
|
|
\\fB\\$1\\fR
|
|
\\$2
|
|
..
|
|
.de EX
|
|
.TP 20
|
|
\\fB\\$1\\fR
|
|
# \\$2
|
|
..
|
|
.SH OPTIONS
|
|
.FL "\-a" "Automatically repair inconsistencies"
|
|
.FL "\-c" "Check and list only the specified i-nodes
|
|
.FL "\-l" "List the files and directories in the filesytem
|
|
.FL "\-r" "Prompt user for repairs if inconsistencies are found
|
|
.FL "\-s" "List the superblock of the file system"
|
|
.SH EXAMPLES
|
|
.EX "fsck /dev/hd4" "Check file system on \fI/dev/hd4\fR"
|
|
.EX "fsck \-a /dev/at0" "Automatically fix errors on \fI/dev/at0\fR"
|
|
.EX "fsck \-l /dev/fd0" "List the contents of \fI/dev/fd0\fR"
|
|
.EX "fsck \-c 2 3 /dev/hd3" "Check and list \fI/dev/hd3\fR i-nodes 2 & 3"
|
|
.SH DESCRIPTION
|
|
.PP
|
|
\fIFsck\fR performs consistency checks on the file systems which reside
|
|
on the specified devices.
|
|
\fIFsck1\fR is an alternate version for use on obsolete V1 file systems.
|
|
When either the \fB\-a\fR or \fB\-r\fR flags are given, the file system
|
|
will be repaired if errors are found.
|
|
Before running \fIfsck\fR on a mounted file system, it must first be unmounted.
|
|
Trying to repair a mounted file system is dangerous and should not be
|
|
attempted.
|
|
.PP
|
|
To repair the root file system (which cannot be unmounted), first
|
|
type CTRL-F9 at the console to kill any and all processes. Log back in
|
|
as \fBroot\fR, type \fIsync\fR to force any buffered changes to disk,
|
|
run \fIfsck\fR on the root file system and immediately reboot the
|
|
computer by typing \fIreboot\fR.
|
|
.PP
|
|
It is necessary to kill all processes before repairing the root file system
|
|
to prevent them from modifying any disk blocks while \fIfsck\fR is running.
|
|
This is only necessary for the root file system, any other file system can
|
|
simply be unmounted before it is checked.
|
|
.SH "SEE ALSO"
|
|
.BR mkfs (1),
|
|
.BR mount (1).
|