Upgraded from 2.5 -> 2.6 CPU panic ensues
2007-12-25 11:36:00
Michael Wang
Chris Marble
for their help.
Original problem: system crashes with a cpu panic after upgrading from
2.5 to 2.6 using the "upgrade" rather than doing a fresh install. I
suspected a problem with DiskSuite 4.0
Suggestions:
from Michael Wang:
> I upgraded a machine from 2.5.1 to 2.6 and it works well.
> I always to "fresh install" instead of "upgrade". "upgrade"
> causes more trouble than it saves. So I suggest you do "fresh" install
> and add everything beyond basic install.
from Chris Marble:
> I did a similar upgrade. I first upgraded my DiskSuite to 4.1 and a
> week later did the OS upgrade. Luckily I didn't have too much data on my
> striped and mirrored didks. I just backed then up to another 9Gb drive
> and then restored them after the SDS upgrade.
Since I didn't have the time to experiment, I went back to tape and
restored our 2.5 system from ufsdumps. The system came back up okay
after that. While doing the restore, however, I discovered a loose SCSI
connection between one of the controller cards and its cable. I don't
know if this may have caused the problem...
-Juergen Heerdegen
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