How can I run the sort of interactive disk label editor that appears
in the installation process for NetBSD to extend the label on a disk
to cover as yet unused sectors?   I want to be lazier than is allowed
for by the -i option to disklabel(8), and see the whole label so that
I can adjust as I go.   I assume there's no special magic in the
installation disk labelling process, but I can't discover what to do.

--
Steve Blinkhorn <steve@prd.co.uk>