vnconfig vnd0 /tmp/diskimage
or
vnconfig /dev/rvnd0c /tmp/diskimage
Configures the vnode disk
vnd0. Please note that use of the second form of the command is discouraged because it requires knowledge of the raw partition which varies between architectures.
vnconfig vnd0 /tmp/floppy.img 512/18/2/80
Configures the vnode disk
vnd0 emulating the geometry of 512 bytes per sector, 18 sectors per track, 2 tracks per cylinder, and 80 cylinders total.
vnconfig -t floppy vnd0 /tmp/floppy.img
Configures the vnode disk
vnd0 using the geometry specified in the
floppy entry in
/etc/disktab.
vnconfig -u vnd0
Unconfigures the
vnd0 device.