166 lines
4.8 KiB
Groff
166 lines
4.8 KiB
Groff
|
.\" Copyright (c) 1993 University of Utah.
|
||
|
|
.\" Copyright (c) 1980, 1989, 1991, 1993
|
||
|
|
.\" The Regents of the University of California. All rights reserved.
|
||
|
|
.\"
|
||
|
|
.\" This code is derived from software contributed to Berkeley by
|
||
|
|
.\" the Systems Programming Group of the University of Utah Computer
|
||
|
|
.\" Science Department.
|
||
|
|
.\"
|
||
|
|
.\" 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.
|
||
|
|
.\"
|
||
|
|
.\" @(#)vnconfig.8 8.1 (Berkeley) 6/5/93
|
||
|
|
.\"
|
||
|
|
.Dd July 8, 1993
|
||
|
|
.Dt VNCONFIG 8
|
||
|
|
.Os BSD 4
|
||
|
|
.Sh NAME
|
||
|
|
.Nm vnconfig
|
||
|
|
.Nd configure and enable vnode disks
|
||
|
|
.Sh SYNOPSIS
|
||
|
|
.Nm vnconfig
|
||
|
|
.Op Fl cdeuv
|
||
|
|
.Ar special_file Ar regular_file
|
||
|
|
.Oo Ar feature Oc
|
||
|
|
.Nm vnconfig
|
||
|
|
.Fl a
|
||
|
|
.Op Fl cdeuv
|
||
|
|
.Op Fl f Ar config_file
|
||
|
|
.Sh DESCRIPTION
|
||
|
|
The
|
||
|
|
.Nm vnconfig
|
||
|
|
command configures and enables vnode pseudo disk devices.
|
||
|
|
The first form of the command will associate the special file
|
||
|
|
.Ar special_file
|
||
|
|
with the regular file
|
||
|
|
.Ar regular_file
|
||
|
|
allowing the latter to be accessed as though it were a disk.
|
||
|
|
Hence a regular file within the filesystem can be used for swapping
|
||
|
|
or can contain a filesystem that is mounted in the name space.
|
||
|
|
.Pp
|
||
|
|
Options indicate an action to be performed:
|
||
|
|
.Bl -tag -width indent
|
||
|
|
.It Fl c
|
||
|
|
Configures the device.
|
||
|
|
If successful, references to
|
||
|
|
.Ar special_file
|
||
|
|
will access the contents of
|
||
|
|
.Ar regular_file .
|
||
|
|
.It Fl e
|
||
|
|
Configures the device and enables any
|
||
|
|
.Ar feature
|
||
|
|
that was specified.
|
||
|
|
If no feature was specified,
|
||
|
|
.Fl e
|
||
|
|
is the same as
|
||
|
|
.Fl c .
|
||
|
|
.It Fl d
|
||
|
|
Disables (if possible) the specified feature.
|
||
|
|
.It Fl u
|
||
|
|
Disables and ``unconfigures'' the device.
|
||
|
|
.It Fl v
|
||
|
|
Print messages to stdout describing actions taken.
|
||
|
|
.El
|
||
|
|
.Pp
|
||
|
|
If no action option is given,
|
||
|
|
.Fl c
|
||
|
|
is assumed.
|
||
|
|
.Pp
|
||
|
|
The
|
||
|
|
.Ar feature
|
||
|
|
argument specifies a feature that can be enabled via the
|
||
|
|
.Fl e
|
||
|
|
option:
|
||
|
|
.Bl -tag -width indent
|
||
|
|
.It Dv swap
|
||
|
|
Swapping is enabled on the special file.
|
||
|
|
See
|
||
|
|
.Xr swapon 2 .
|
||
|
|
.It Dv Pf mountro= Pa mount_point
|
||
|
|
The special file is mounted read-only on
|
||
|
|
.Ar mount_point .
|
||
|
|
See
|
||
|
|
.Xr mount 2 .
|
||
|
|
.It Dv Pf mountrw= Pa mount_point
|
||
|
|
The special file is mounted read-write on
|
||
|
|
.Ar mount_point .
|
||
|
|
See
|
||
|
|
.Xr mount 2 .
|
||
|
|
.It Dv Pf mount= Pa mount_point
|
||
|
|
Same as ``mountrw=''.
|
||
|
|
.El
|
||
|
|
.Pp
|
||
|
|
The second (-a) form of the command reads a command file and performs the
|
||
|
|
specified actions for each device/file pair.
|
||
|
|
With
|
||
|
|
.Fl f
|
||
|
|
it reads the indicated configuration file
|
||
|
|
.Ar config_file .
|
||
|
|
Otherwise it uses a default configuration file.
|
||
|
|
A configuration file contains one line per device/file pair in the form:
|
||
|
|
.Bd -literal
|
||
|
|
special_file regular_file [ feature ]
|
||
|
|
.Ed
|
||
|
|
.Pp
|
||
|
|
where fields are seperated by white space.
|
||
|
|
The previously described action options serve to configure, enable,
|
||
|
|
disable or unconfigure all devices in the configuration file.
|
||
|
|
.Sh FILES
|
||
|
|
.Bl -tag -width /etc/vntab -compact
|
||
|
|
.It Pa /etc/vntab
|
||
|
|
default configuration file for
|
||
|
|
.Fl a
|
||
|
|
option.
|
||
|
|
.El
|
||
|
|
.Sh EXAMPLES
|
||
|
|
.Pp
|
||
|
|
.Dl vnconfig /dev/vnd0c /tmp/diskimage
|
||
|
|
.Pp
|
||
|
|
Configures the vnode disk
|
||
|
|
.Pa vnd0c .
|
||
|
|
.Pp
|
||
|
|
.Dl vnconfig -e /dev/vnd0c /var/swapfile swap
|
||
|
|
.Pp
|
||
|
|
Configures
|
||
|
|
.Pa vnd0c
|
||
|
|
and enables swapping on it.
|
||
|
|
.Pp
|
||
|
|
.Dl vnconfig -d /dev/vnd0c myfilesystem mount=/mnt
|
||
|
|
.Pp
|
||
|
|
Unmounts (disables)
|
||
|
|
.Pa vnd0c .
|
||
|
|
.Pp
|
||
|
|
.Dl vnconfig -ae
|
||
|
|
.Pp
|
||
|
|
Configures and enables all devices specified in
|
||
|
|
.Pa /etc/vntab .
|
||
|
|
.Sh SEE ALSO
|
||
|
|
.Xr swapon 2 ,
|
||
|
|
.Xr mount 2 ,
|
||
|
|
.Xr unmount 2 .
|