2.3 on pmax (5000/240) - help!

[Stephen Darragh <stephen_(_at_)_it_(_dot_)_net_(_dot_)_au>]

I successfully updated user land and built a 2.3 kernel to update my old
2.2 setup.

HOWEVER...  The 2.3 kernel won't successfully boot.  It recognizes the two
SCSI drives as rz0 and rz1, but claims that rrz1a/etc. are "not
configured" when it comes to fsck/mount.  rrz0x are fine.

Note that both 2.2 and 2.3 see the rz1 drive as a 10meg unit when it is in
fact 4gig.  I think this is just my stupid disklabel, but it hasn't caused
any problems until now.

Clues..?

... Stephen