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28 .\" @(#)umount.8 8.2 (Berkeley) 5/8/95
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36 .Nd unmount filesystems
53 system call to remove a
55 or the remote node (rhost:path) from the filesystem tree at the point
61 are not provided, the appropriate information is taken from the
65 The options are as follows:
66 .Bl -tag -width indent
68 All the filesystems described in
72 All the currently mounted filesystems except
73 the root are unmounted.
75 If the filesystem was mounted from a
77 vnode disk, detach the underlying disk as well.
83 The filesystem is forcibly unmounted.
84 Active special devices continue to work,
85 but all other files return errors if further accesses are attempted.
86 The root filesystem cannot be forcibly unmounted.
88 Only filesystems mounted from the specified host will be
90 This option implies the
92 option and, unless otherwise specified with the
94 option, will only unmount
98 Is used to indicate the actions should only be taken on
99 filesystems of the specified type.
100 More than one type may be specified in a comma separated list.
101 The list of filesystem types can be prefixed with
103 to specify the filesystem types for which action should
109 .Bd -literal -offset indent
113 unmounts all filesystems of the type
117 that are listed in the
121 Verbose, additional information is printed out as each filesystem
125 .Bl -tag -width PATH_FSTAB
127 If the environment variable
129 is set all operations are performed against the specified file.
132 .Bl -tag -width /etc/fstab -compact