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FSCK_MSDOS(8) NetBSD System Manager's Manual FSCK_MSDOS(8)
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fsck_msdos -- DOS/Windows (FAT) filesystem consistency checker
fsck_msdos -p [-f] filesystem ...
fsck_msdos [-fny] [-x snap-backup] filesystem ...
The fsck_msdos utility verifies and repairs FAT filesystems (more com-
monly 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, indi-
cates 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
fss(4), fsck(8), fsck_ffs(8), mount_msdos(8)
A fsck_msdos utility appeared in NetBSD 1.2.
fsck_msdos is still under construction.
NetBSD 9.3 September 11, 2016 NetBSD 9.3