format of AIX PS/2 1.2 boot diskettes

[Steve Dyer]

There are two boot diskettes distributed with AIX 1.2.
The first is a (partial?) filesystem which can be mounted.
The second is a kind of extension of the file system contained
on the first.  I need to create a new set of AIX 1.2 boot floppies
containing a slightly different unix.gen, and so need
to know the format of that second diskette.  How is it
created?  The two diskettes taken together don't seem to
be the simple concatenation of a larger file system.
There is some sort of disk i.d. on the second disk which
the boot program is looking for.

Can anyone at IBM or Locus help me out here?

-- 
Steve Dyer
dyer at ursa-major.spdcc.com aka {ima,harvard,rayssd,linus,m2c}!spdcc!dyer
dyer at arktouros.mit.edu, dyer at hstbme.mit.edu