>> 2. Go back to the Finder. Drag any MacOS partitions you may have created to
>> the Trash to unmount them.
>
>Actually, the above is unnecessary, at least in my experience.  It's just 
>a little disturbing to have them still available as Mac volumes when 
>you've just converted them to NetBSD volumes.  I'm fairly sure they're 
>unmounted upon NetBSD boot, so they should be fine when they come up there.
>I also don't remember having any trouble installing onto them after 
>having run Mkfs on them.

Mkfs should really do this before changing the partition and it should 
also make sure that there aren't any open files on the MacOS volume when 
it trashes it.  Unfortunately I'm not much of a MacOS programmer and 
didn't know how to do this at the time.  If someone has some pointers or 
code snippets that will show me how to do this I'd be happy to add this 
to mkfs.

thanks,
-bob