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NetBSD 6.1.5 - man page for fsck_msdos (netbsd section 8)

FSCK_MSDOS(8)			   BSD System Manager's Manual			    FSCK_MSDOS(8)

NAME
     fsck_msdos -- DOS/Windows (FAT) filesystem consistency checker

SYNOPSIS
     fsck_msdos -p [-f] filesystem ...
     fsck_msdos [-fny] [-x snap-backup] filesystem ...

DESCRIPTION
     The fsck_msdos utility verifies and repairs FAT filesystems (more commonly known as DOS
     filesystems).

     The first form of fsck_msdos preens the specified filesystems.  It is normally started by
     fsck(8) run from /etc/rc during automatic reboot, when a FAT filesystem is detected.  When
     preening file systems, fsck_msdos will fix common inconsistencies non-interactively.  If
     more serious problems are found, fsck_msdos does not try to fix them, indicates that it was
     not successful, and exits.

     The second form of fsck_msdos checks the specified file systems and tries to repair all
     detected inconsistencies, requesting confirmation before making any changes.

     The options are as follows:

     -f 	       This option is ignored by fsck_msdos, and is present only for compatibil-
		       ity with programs that check other file system types for consistency, such
		       as fsck_ffs(8).

     -n 	       Causes fsck_msdos to assume no as the answer to all operator questions,
		       except ``CONTINUE?''.

     -p 	       Preen the specified filesystems.

     -x snap-backup    Use a snapshot with snap-backup as backup to check a read-write mounted
		       filesystem.  Must be used with -n.  See fss(4) for more details.  The
		       point is to check an internally-consistent version of the filesystem to
		       find out if it is damaged; on failure one should unmount the filesystem
		       and repair it.

     -y 	       Causes fsck_msdos to assume yes as the answer to all operator questions.

SEE ALSO
     fss(4), fsck(8), fsck_ffs(8), mount_msdos(8)

BUGS
     fsck_msdos is still under construction.

BSD					  April 11, 2010				      BSD


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