FSCK(8) NetBSD System Manager's Manual FSCK(8)
NAME
fsck - file system consistency check and interactive repair
SYNOPSIS
fsck [-dfnpvy] [-l maxparallel] [-t fstype] [-T fstype:fsoptions] [special | node ...]
DESCRIPTION
The fsck command invokes file system-specific programs to check the spe- cial devices listed in the fstab(5) file or in the command line for con- sistency. It is normally used in the script /etc/rc during automatic reboot. If no file systems are specified, and ``preen'' mode is enabled ( -p option) fsck reads the table /etc/fstab to determine which file systems to check, in what order. Only partitions in fstab that are mounted ``rw,'' ``rq'' or ``ro'' and that have non-zero pass number are checked. File systems with pass number 1 (normally just the root file system) are checked one at a time. When pass 1 completes, all remaining file systems are checked, running one process per disk drive. By default, file systems which are already mounted read-write are not checked. The disk drive containing each file system is inferred from the longest prefix of the device name that ends in a digit; the remaining characters are assumed to be the partition designator. The options are as follows: -d Debugging mode. Just print the commands without executing them. -f Force checking of file systems, even when they are marked clean (for file systems that support this), or when they are mounted read-write. -l maxparallel Limit the number of parallel checks to the number specified in the following argument. By default, the limit is the number of disks, running one process per disk. If a smaller limit is giv- en, the disks are checked round-robin, one file system at a time. -n Causes fsck to assume no as the answer to all operator questions, except "CONTINUE?". -p Enter preen mode. In preen mode, fsck will check all file sys- tems listed in /etc/fstab according to their pass number, and will make minor repairs without human intervention. Any major problems will cause fsck to exit with a non-zero exit(3) code, so as to alert any invoking program or script that human interven- tion is required. -t fstype Invoke fsck only for the comma separated list of file system types. If the list starts with ``no'' then invoke fsck for the file system types that are not specified in the list. -v Print the commands before executing them. -y Causes fsck to assume yes as the answer to all operator ques- tions. -T fstype:fsoptions List of comma separated file system specific options for the specified file system type, in the same format as mount(8).
FILES
/etc/fstab file system table
SEE ALSO
fstab(5), fsck_ffs(8), fsck_msdos(8), mount(8) NetBSD 1.6.1 June 18, 2001 2
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