Todd Whitesel <toddpw@best.com> writes:

> Obviously I could create two NetBSD areas and use a boot manager to flip
> between them (I own System Commander, which is definitely capable of this).
You would probably want the old netbsd to retain partition ID 165 and
have the new one be 169.  I do this with a disk that can either boot
FreeBSD or NetBSD -current.  This works fine.