On Mon, 20 Sep 1999, Terry R. Friedrichsen wrote:

> 3)  I have all the .tgz sets on the Ultrix disk, but sysinstall refuses to
> 	find them; it appears as though the install kernel can't success-
> 	fully mount the Ultrix disk.  I tried mounting the disk after getting
> 	to a shell prompt to diagnose this, and found that mounting the
> 	Ultrix disk as an ffs file system fails (because it thinks the super-
> 	block is invalid, IIRC), and mounting the Ultrix disk as a ufs file
> 	system fails because mount_ufs isn't around.

  I think someone broke the compatibility with Ultrix filesystems (again).
I started looking at this at one time, and I seem to recall finding that
some consistency checks on the superblock had been added, and were using
fields that did not exist in the superblock on the old filesystem.  I
think if the contents of those entries were 0, it would function
correctly, but I think Ultrix fills the unused space in the superblock
with 0xff.

Michael

---
Michael L. Hitch			mhitch@montana.edu
Computer Consultant
Information Technology Center
Montana State University	Bozeman, MT	USA