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UMOUNT(8) DragonFly System Manager's Manual UMOUNT(8)
NAME
umount -- unmount filesystems
SYNOPSIS
umount [-fv] special | node
umount -a | -A [-F fstab] [-fv] [-h host] [-t type]
DESCRIPTION
The umount command calls the unmount(2) system call to remove a special
device or the remote node (rhost:path) from the filesystem tree at the
point node. If either special or node are not provided, the appropriate
information is taken from the fstab(5) file.
The options are as follows:
-a All the filesystems described in fstab(5) are unmounted.
-A All the currently mounted filesystems except the root are
unmounted.
-F fstab
Specify the fstab file to use.
-f The filesystem is forcibly unmounted. Active special devices
continue to work, but all other files return errors if further
accesses are attempted. The root filesystem cannot be forcibly
unmounted.
-h host
Only filesystems mounted from the specified host will be
unmounted. This option implies the -A option and, unless
otherwise specified with the -t option, will only unmount NFS
filesystems.
-t type
Is used to indicate the actions should only be taken on
filesystems of the specified type. More than one type may be
specified in a comma separated list. The list of filesystem
types can be prefixed with ``no'' to specify the filesystem types
for which action should not be taken. For example, the umount
command:
umount -a -t nfs,mfs
unmounts all filesystems of the type NFS and MFS that are listed
in the fstab(5) file.
-v Verbose, additional information is printed out as each filesystem
is unmounted.
ENVIRONMENT
PATH_FSTAB If the environment variable PATH_FSTAB is set all operations
are performed against the specified file.
FILES
/etc/fstab filesystem table
SEE ALSO
unmount(2), fstab(5), mount(8)
HISTORY
A umount command appeared in Version 1 AT&T UNIX.
DragonFly 4.5 September 29, 2016 DragonFly 4.5