3.D-1 and 3.2D-2 on 2100 and 2100A

From: Dr Marco Luchini <m.luchini_at_ic.ac.uk>
Date: Wed, 29 May 1996 07:38:44 +0100

Hi all,

stadard upgrades to Digital Unix lead to 3.2D-1. But 2100A's come with
3.2D-2 and if a 2100's hardware is upgraded to a 2100A it should also
run 3.2D-2. I need to find a way of running the same OS on both
2100's and 2100A's because a 2100A needs to run as a backup machine
to a bunch of 2100's with different controllers. So I need the 2100A
to be the backup because it has all those extra PCI slots.

1) Is the difference purely at the kernel level? IE once the kernel
is built on a 2100A can I run a 3.2D-2 kernel on a 2100 with 3.2D-1
installed? I know I cannot do the reverse - the 3.2D-1 kernel does not
support the CPU of the 2100 - or so it claimed when I tried.

2) Can I upgrade the 2100's to run 3.2D-2? Presumably there must be a
way to do this since I were to install the extra hardware I would have
to do it. Does this just involve booting off hvmunix and then installing
a some different subsets? Or do I have to do a full install?

3) Are there are any gotchas and pitfalls that this scheme would
entail? The 3.2D-x release notes are ominously full of various
hardware gotchas like don't stick a KZPSC behind the PCI-to-PCI bus
and so on. The 2100A has almost a full set of controller cards inside
so I don't want the whole scheme to fall down because of firmware.

4) Just know what IS the difference between 3.2D-1 and 3.2D-2 would help.


Thanks, Marco


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Marco Luchini Internet : m.luchini_at_ic.ac.uk
Department of Mathematics Telephone: +44 71 589 5111 x58599
Imperial College Fax: +44 71 594 8517
London SW7 2BZ, UK
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Received on Wed May 29 1996 - 09:01:10 NZST

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