umount

Name

umount -- unmount file systems

Synopsis

umount [-hV]
umount -a [-nrv] [-t vfstype]
umount [-nrv] device | dir...

Description

umount detaches the file system(s) mentioned from the file hierarchy. A file system is specified by giving the directory where it has been mounted.

Standard Options

-v

invokes verbose mode.

-n

unmounts without writing in /etc/mtab.

-r

tries to remount read-only if unmounting fails.

-a

unmounts all of the file systems described in /etc/mtab except for the proc filesystem.

-t vfstype

indicates that the actions should only be taken on file systems of the specified type. More than one type may be specified in a comma separated list. The list of file system types can be prefixed with no to specify the file system types on which no action should be taken.

-f

forces unmount (in case of an unreachable NFS system).

LSB Deprecated Options

The behaviors specified in this section are expected to disappear from a future version of the LSB; applications should only use the non-LSB-deprecated behaviors.

-V

print version and exits.