Hi,

after several evenings of experiments it seems I'm through...

As Allen had suggested I tried a "dd if=/dev/zero count=20k bs=1k
of=/dev/rsd2c" on a 230 MB mo-disk. It succeeded with a kernel built from
-current sources I sup'ed on 3 October, with the kernel that comes with the
1.0a binary distribution on puma.bevd.blacksburg.va.us (11 August)- and
also with the -current kernel of 6 August that had crashed so badly before.

An interesting observation: the 10/3 kernel gave a transfer rate of about
25k/sec whereas the other two I tried yielded about 50k. On the other hand,
the 10/3 kernel was less sensitive to other machine activities during disk
access than the other two: the 8/6 kernel even stopped disk acesses when I
switched dt screens.

I did not experiment too much with the older kernels (I saw enough crashes
:-/) but I have copied about 300 MB to/from the M2512 with the -current
kernel without any problems. Phew...

So once I had a copy of /usr/src on MO I wanted to do a mount_union with
/usr/obj and was told something like 'not supported on this file system'.
Am I doing anything wrong here, or is this feature of 4.4BSD not yet
implemented?

Many, many thanks to you, Allen, for your work on the SCSI driver and for
getting me going again...

        hauke

{
   hauke fath                     "It's never straight up and down"
   saw@sun0.urz.uni-heidelberg.de                            (DEVO)
}