NetBSD/usr.sbin/vnconfig/vnconfig.8

.\" Copyright (c) 1993 University of Utah.
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.\"     @(#)vnconfig.8	8.1 (Berkeley) 6/5/93
.\"
.Dd July 8, 1993
.Dt VNCONFIG 8
.Os BSD 4
.Sh NAME
.Nm vnconfig
.Nd configure vnode disks
.Sh SYNOPSIS
.Nm vnconfig
.Op Fl cuv
.Ar special_file Ar regular_file
.Sh DESCRIPTION
The
.Nm vnconfig
command configures vnode pseudo disk devices.
It 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 u
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.
.Sh FILES
.Bl -tag -width /etc/rvnd?? -compact
.It Pa /dev/rvnd??
.It Pa /dev/vnd??
.El
.Sh EXAMPLES
.Pp
.Dl vnconfig /dev/vnd0c /tmp/diskimage
.Pp
Configures the vnode disk
.Pa vnd0c .
.Pp
.Dl vnconfig -u /dev/vnd0c /tmp/diskimage
.Pp
Unconfigures the
.Pa vnd0c
device.
.Sh SEE ALSO
.Xr swapon 8 ,
.Xr mount 8 ,
.Xr umount 8 .