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 seri-
ous 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 compatibility 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