Mounting BSD/OS 4.1 disk under FreeBSD 4.10

[Keith Woodworth]

Had a BSD/OS 4.1 disk go flaky the other day. So using this as my chance
to upgrade another one of our machines to FreeBSD I isntalled FBSD on a
new drive and there is some data I'd like to pull off the old BSD/OS drive
(its BSD/OS 4.1).

BSD/OS drive is seen by FBSD as ad2, new drive is ad0.

I added some entries into /etd/fstab for ad2 in various combos and tried
to mount ad2 but I get:

ad2s2 slice starts beyond end of disk.
incorrect superblock.

Ive tried ad2s1a, ad2s1, ad2a and pretty much get the same thing.

Wonder if its possible? I could do this other ways but it involved network
restores, scp etc and I'm lazy and though it would be quicker and cleaner
to just mount the old disk of possible.

Anyone know? Or wonder if BSD/OS can mount a FBSD disk?

Thanks,
Keith