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Diffstat (limited to 'sbin/umount/umount.8')
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diff --git a/sbin/umount/umount.8 b/sbin/umount/umount.8 new file mode 100644 index 0000000..234eb8f --- /dev/null +++ b/sbin/umount/umount.8 @@ -0,0 +1,123 @@ +.\" Copyright (c) 1980, 1989, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)umount.8 8.1 (Berkeley) 2/20/94 +.\" +.Dd February 20, 1994 +.Dt UMOUNT 8 +.Os BSD 4 +.Sh NAME +.Nm umount +.Nd unmount file systems +.Sh SYNOPSIS +.Nm umount +.Op Fl fv +.Ar special | node +.Nm umount +.Fl a +.Op Fl fv +.Op Fl h Ar host +.Op Fl t Ar ufs | lfs | external_type +.Sh DESCRIPTION +The +.Nm umount +command +calls the +.Xr unmount 2 +system call to remove a +.Ar "special device" +or the remote node (rhost:path) from the file system tree at the point +.Ar node . +If either +.Ar special +or +.Ar node +are not provided, the appropriate information is taken from the +.Xr fstab 5 +file. +.Pp +The options are as follows: +.Bl -tag -width indent +.It Fl a +All of the file systems described in +.Xr fstab 5 +are unmounted. +.It Fl 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. +.It Fl h Ar host +Only filesystems mounted from the specified host will be +unmounted. +This option is implies the +.Fl a +option and, unless otherwise specified with the +.Fl t +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 +.Dq no +to specify the filesystem types for which action should +.Em not +be taken. +For example, the +.Nm umount +command: +.Bd -literal -offset indent +umount -a -t nfs,mfs +.Ed +.Pp +umounts all filesystems of the type +.Tn NFS +and +.Tn MFS . +.It Fl v +Verbose, additional information is printed out as each file system +is unmounted. +.El +.Sh FILES +.Bl -tag -width /etc/fstab -compact +.It Pa /etc/fstab +file system table +.El +.Sh SEE ALSO +.Xr unmount 2 , +.Xr fstab 5 , +.Xr mount 8 +.Sh HISTORY +A +.Nm umount +command appeared in +.At v6 . |