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FSCK_MSDOSFS(8) System Manager's Manual FSCK_MSDOSFS(8) NAME fsck_msdosfs -- DOS/Windows (FAT) file system consistency checker SYNOPSIS fsck_msdosfs -p [-BCf] filesystem ... fsck_msdosfs [-BCMny] filesystem ... DESCRIPTION The fsck_msdosfs utility verifies and repairs FAT file systems (more com- monly known as DOS file systems). The first form of fsck_msdosfs preens the specified file systems. It is normally started by fsck(8) run from /etc/rc during automatic reboot, when a FAT file system is detected. When preening file systems, fsck_msdosfs will fix common inconsistencies non-interactively. If more serious prob- lems are found, fsck_msdosfs does not try to fix them, indicates that it was not successful, and exits. The second form of fsck_msdosfs checks the specified file systems and tries to repair all detected inconsistencies, requesting confirmation before mak- ing any changes. The options are as follows: -B Ignored for fsck(8) compatibility. -C Ignored for fsck(8) compatibility. -F Compatibility with the wrapper fsck(8) which seeks to determine whether the file system needs to be cleaned immediately in fore- ground, 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. -M Causes fsck_msdosfs to not use mmap(2) when checking a FAT32 file system. This option is mainly for debugging purposes and is not normally necessary. The fsck_msdosfs utility will automatically fall back to use a simple LRU cache of 4 MiB when it failed to per- form mmap(2), or when -M is specified. -f Force fsck_msdosfs to check "clean" file systems when preening. -n Causes fsck_msdosfs to assume "no" as the answer to all operator questions, except "CONTINUE?". -p Preen the specified file systems. -y Causes fsck_msdosfs to assume "yes" as the answer to all operator questions. SEE ALSO msdosfs(4), fsck(8) HISTORY The fsck_msdosfs utility appeared in NetBSD 1.2. fsck_msdosfs first ap- peared in FreeBSD 4.4. BUGS The fsck_msdosfs utility is currently under development. FreeBSD ports 15.quarterly December 18, 2024 FSCK_MSDOSFS(8)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | BUGS
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