Joseph Sarkes <joe@js.ne.mediaone.net> wrote:

>I am unable to use mdconfig to make a memory disk image.
>Is there some particular required kernel configuration to
>use this? It appears to me that all you need is the pseudo
>device entry, and the /dev entries, and the command should
>work. All I get are Device not configured errors. 

I'm not sure about mdconfg, but vnconfig gives the same error with the 
command:

    vnconfig /dev/vnd0d file-name

The solution here is to use the command:

    vnconfig /dev/vnd0 file-name

and then associate the actual device part with the mount command, i.e.

    mount -t [type] /dev/vnd0c /mnt

hope this helps,
-bob