disk layout for sysinst for prep

I'm trying to sanitise some of the sysinst code.
In partictular using common code for all the disk partitioning (instead
of slightly different copies of a big routine in each port).

The 'prep' port has me slightly stumped though.

The code seems to look for an mbr disklabel, then:
- fails to set C up at all
- sets D to be the whole disk
- then sets D to be /usr

It also can't make its mind up whether there are 8 or 16 partitions.

My suspicion is that is just broken - so I can't make it worse.
I'll probaly leave it as an mbr install.  So C is the netbsd partition,
D the whole disk and E /usr.

	David

-- 
David Laight: [email protected]