>> umount (8) ( FreeBSD man: Команды системного администрирования )
umount (8) ( Русские man: Команды системного администрирования )
umount (8) ( Linux man: Команды системного администрирования )
BSD mandoc
NAME
umount
- unmount file systems
SYNOPSIS
[-fv
]
special | node | fsid
-a | A
[-F fstab
]
[-fv
]
[-h host
]
[-t type
]
DESCRIPTION
The
utility calls the
unmount(2)
system call to remove a file system from the file system tree.
The file system can be specified by its
special
device or remote node (rhost:path), the path to the mount point
node
or by the file system ID
fsid
as reported by
``mount -v''
The options are as follows:
-a
All the file systems described in
fstab(5)
are unmounted.
-A
All the currently mounted file systems except
the root are unmounted.
-F fstab
Specify the
fstab
file to use.
-f
The file system is forcibly unmounted.
Active special devices continue to work,
but all other files return errors if further accesses are attempted.
The root file system cannot be forcibly unmounted.
-h host
Only file systems 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
file systems.
-t type
Is used to indicate 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 for which action should
not
be taken.
For example, the
command:
umount -a -t nfs,nullfs
unmounts all file systems of the type
NFS
and
NULLFS
that are listed in the
fstab(5)
file.
-v
Verbose, additional information is printed out as each file system
is unmounted.
ENVIRONMENT
PATH_FSTAB
If the environment variable
PATH_FSTAB
is set, all operations are performed against the specified file.
PATH_FSTAB
will not be honored if the process environment or memory address space is
considered
``tainted''
(See
issetugid(2)
for more information.)
