UMOUNT
Section: Maintenance Commands (8)
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BSD mandoc
BSD 4
NAME
umount
- unmount filesystems
SYNOPSIS
umount
[-fv
]
special | node
umount
-a | A
[-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
-
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 is 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
umounts all filesystems of the type
NFS
and
MFS
- -v
-
Verbose, additional information is printed out as each filesystem
is unmounted.
FILES
- /etc/fstab
-
filesystem table
SEE ALSO
unmount(2),
fstab(5),
mount(8)
HISTORY
A
umount
command appeared in
AT&T System
v6 .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- FILES
-
- SEE ALSO
-
- HISTORY
-
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