.\" Copyright (c) 1980, 1989, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
.\" %sccs.include.redist.roff%
.\" @(#)umount.8 8.1 (Berkeley) %G%
.Op Fl t Ar ufs | lfs | external_type
or the remote node (rhost:path) from the file system tree at the point
are not provided, the appropriate information is taken from the
The options are as follows:
All of the file systems described in
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.
Only filesystems mounted from the specified host will be
This option is implies the
option and, unless otherwise specified with the
option, will only unmount NFS filesystems.
.It Fl t Ar "ufs \\*(Ba lfs \\*(Ba external 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
to specify the filesystem types for which action should
.Bd -literal -offset indent
umounts all filesystems of the type
Verbose, additional information is printed out as each file system
.Bl -tag -width /etc/fstab -compact
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