.\" $NetBSD: fsck_msdos.8,v 1.9 1997/10/17 11:19:58 ws Exp $
.\" Copyright (C) 1995 Wolfgang Solfrank
.\" Copyright (c) 1995 Martin Husemann
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.\" modification, are permitted provided that the following conditions
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.\" This product includes software developed by Martin Husemann
.\" and Wolfgang Solfrank.
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.Dd August 13, 1995
.Dt FSCK_MSDOSFS 8
.Nd DOS/Windows (FAT) file system consistency checker
.Op Fl f
.Ar filesystem ...
.Op Fl fny
.Ar filesystem ...
utility verifies and repairs
file systems (more commonly known
The first form of
preens the specified file systems.
It is normally started by
.Xr fsck 8
during automatic reboot, when a FAT file system is detected.
When preening file systems,
will fix common inconsistencies non-interactively.
If more serious problems are found,
does not try to fix them, indicates that it was not
successful, and exits.
The second form of
checks the specified file systems and tries to repair all
detected inconsistencies, requesting confirmation before
making any changes.
The options are as follows:
.Bl -tag -width indent
.It Fl F
Compatibility with the wrapper
.Xr fsck 8
which seeks to determine whether the file system needs to be cleaned
immediately in foreground, or if its cleaning can be deferred to background.
FAT (MS-DOS) file systems must always be cleaned in the foreground.
A non-zero exit code is always returned for this option.
.It Fl f
This option is ignored by
and is present only for compatibility with programs that
check other file system types for consistency, such as
.Xr fsck_ffs 8 .
.It Fl n
.Dq Li no
as the answer to all operator
.Dq Li CONTINUE? .
.It Fl p
Preen the specified file systems.
.It Fl y
.Dq Li yes
as the answer to all operator questions.
.Sh SEE ALSO
.Xr fsck 8 ,
.Xr fsck_ffs 8 ,
.Xr mount_msdosfs 8
utility first appeared in
.Fx 4.4 .