Creating file-backed VBDs

On Sun, 5 Nov 2006, Mike Sun wrote:
> I have created a disk image with "dd if=/dev/zero
of=nbsd-disk bs=1k
> seek=2048k count=1" and am able to start and enter
the NetBSD
...
> Do I need to fdisk the file disk image?  Or manually
disklabel and
> create a filesystem on it?

Does the same happen with a non-sparse file (i.e.: "dd
if=/dev/zero 
of=nbsd-disk bs=1m count=2000")?


  - Hubert