Message-ID: <3840305B.59044771@simul8.demon.co.uk>
Date: Sat, 27 Nov 1999 19:26:19 +0000
From: James Lothian <simul8@simul8.demon.co.uk>
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To: "Daniel A. Seagraves" <DSEAGRAV@toad.xkl.com>
CC: pups@minnie.cs.adfa.oz.au
Subject: Re: 2.11BSD
References: <13502970974.14.DSEAGRAV@toad.xkl.com>
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Sender: owner-pups@minnie.cs.adfa.edu.au
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Hmm.. I've got a manual for the Viking UDT, and I'll try to remember to 
bring it in on Monday. 

I don't know anything about how 2.11BSD boots. However, I had an
interesting
time trying to get 4.3BSD on my 750 to boot off this controller. It
turned out 
that the Viking's emulation of the UDA50 isn't *quite* accurate, and
that the 4.3 boot
code was using one of the edge-of-the-envelope features that the Viking
didn't quite 
emulate right. I modified the bootstrap slightly and got it going.
Whether this 
has anything to do with your problem, I don't know. (It was worth all
the effort 
in the end, to see the monster hulking 750 booting of a little dinky
plastic zip drive!)

James

"Daniel A. Seagraves" wrote:
> 
> I am now dangerously close to getting 2.11BSD on my 11/44. ^_^
> I got a SCSI disk controller (Viking UDT) and TS11 tapes, and 16 ports of
> DZ11s  (Anyone got jumper/DIP switch info on these?), but my problem is
> lack of a boot tape.
> 
> Anyway, since I have other machines around which can grok SCSI disks, I tried
> making an RP06 image on Supnik's emulator, installing the rauboot instead of
> hkuboot, but it failed.  The PDP-11 read the bootstrap in OK and the bootstrap
> was running but it was looping (I forgot the address).
> 
> Has anyone done this before?  I would use a SCSI tape to boot from but the
> SCSI tape drive I have died.  (Roached literally - one of the little fsckers
> got inside it and got fried.)
> 
> -------