| As another datapoint, I upgraded to 9.1 via the downloaded installer and
| had no problems.

  In the meantime, I brought the machine up via netbooting and
indeed, the BSD disklabel was gone. I'm inclined to think that
something with my partitioning is wrong as my A/UX partitions
is the _first_ partition on the disk, so the MacOS upgrade may
have overwritten something in an area it thinks is available.

  Thanks for the help though, it was good to hear OF wasn't
hosed.

	mjl