I'd go for passing the starting sector of the partition along to the
next stages. The 2nd stage can then stuff it in an additional boot_info
structure, and disksubr.c can then find it from there.

The hardest part is how to pass the info up. You'll need to find 2
registers to do it (one with a magic value so you'll know that
the info is valid, the other one with the value). It might be
a bit of a struggle to get that done..

- Frank

-- 
Frank van der Linden                           fvdl@wasabisystems.com
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