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Date:      Mon, 11 Oct 1999 23:18:17 +0200 (CEST)
From:      Wilko Bulte <wilko@yedi.iaf.nl>
To:        cgd@netbsd.org (Chris G. Demetriou)
Cc:        freebsd-alpha@freebsd.org
Subject:   Re: DEC3000/400 SRM bootp overview
Message-ID:  <199910112118.XAA43196@yedi.iaf.nl>
In-Reply-To: <87ln9966a8.fsf@redmail.netbsd.org> from "Chris G. Demetriou" at "Oct 11, 1999 12:34: 7 pm"

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As Chris G. Demetriou wrote ...
> Wilko Bulte <wilko@yedi.iaf.nl> writes:
> > * SRM 7.0 (latest available revision)
> > - does not do BOOTP correctly, "? T_ERR_NI - RECEIVE_TIMEOUT"
> > - this rev is useless for bootp network boot
> > 
> > * SRM 6.9
> > - does not do BOOTP correctly, "? T_ERR_NI - RECEIVE_TIMEOUT"
> > - this rev is useless for bootp network boot
> 
> There are similar issues with some versions of the firmware for
> 3000/300 models, too.
> 
> I ran into them when I was developing the NetBSD/alpha code at CMU.
> I/we pushed on it a bit with various contacts that we had at DEC, and
> it came back that apparently the SRM folks said that it was due to a
> "hardware problem"... never mind that previous revisions of the
> firmware worked fine.

I just noticed that SRM 6.0 had a timeout problem when booting 
from my Aspen Alpine (EB64+) whereas the same SRM 6.0 worked OK 
booting from my K6-2 box. This leads me to the suspicion that there
is something *very* timing critical (or something close to that) on 
the later SRM revs. 

Chris, as I understand it you had NetBSD booting using bootp from SRM.
Or did you use MOP maybe? IIRC NetBSD can do MOP boot serving.

> "stupid, stupid, stupid."

Eh, yeah.

-- 
|   / o / /  _  	 Arnhem, The Netherlands	- Powered by FreeBSD -
|/|/ / / /( (_) Bulte 	 WWW  : http://www.tcja.nl 	http://www.freebsd.org


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