Ultrix 3.1 corrupts disk during installation

[Dan Ts'o]

	I'm having a problem installing Ultrix 3.1 on a MVAX II with RD53's.
Everything installs fine. Then I reconfig the kernel for a few extra devices.
I boot up single user -- still everything is fine. However going to multiuser
corrupts the disk (somewhere after savecore is executed in /etc/rc). The
corruption manifests as a complete scrambling of the root disk such that
the disk driver reports requests for completely crazy block numbers.
	Note that Ultrix 3.0 did not have this problem (actually I am trying
to use the same config file for 3.0 and 3.1).
	Any ideas ? Please email. Thanks.

				Cheers,
				Dan Ts'o		212-570-7671
				Dept. Neurobiology	dan at rna.rockefeller.edu
				Rockefeller Univ.	...cmcl2!rna!dan
				1230 York Ave.		rna!dan at nyu.edu
				NY, NY 10021		tso at rockefeller.arpa
							tso at rockvax.bitnet