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Re: DS5000/120

Subject: Re: DS5000/120
From: (Paul Antoine)
Date: Tue, 4 Jun 1996 12:29:25 +1000 (EST)
In-reply-to: <> from "Michael Engel" at Jun 3, 96 04:25:38 pm
Organization: Softway Pty Ltd
Hi Folks,

Michael Engel writes:

> Now comes the best thing. I managed to boot the DS5000 via tftp from
> a Linux/ intel system (no problem, I've set up diskless Sun client for
> years :)) and tried to boot linux-1.3.62.dec.tar.gz from
> and - voila! - it started to spill out messgaes on
> the console ! The system is correctly detected as DecStation 5000/1xx
> and continues to boot (I haven't got the exact messages, but I can
> reproduce them) until the line
> Clearing memory
> (or was that "testing memory" ?

It's "Initialising memory", and it's not a standard Linux message.
I'm using Luc's standard printk method of debugging :-)

> Then the system hangs and doesn't even react when pressing the reset
> button on the back, I have to switch power to bring the DS5000 back to
> life.

Yes, this is as far as my debugging has gone, and you will have
noticed several "Avoiding doing xxxx" messages that appear in sections
where I know there are still problems.  I could be kind and add a call
to the boot prom to do a 'halt', but I couldn't be bothered because
this hanging-point keeps changing from one compile to another as I do
more work.

> But I was very impressed that I came this far !!! Fine work !


> [availability of DS5000/120 documentation]
> > The reason you can't find them is that they are not publically available.
> > DEC has made them available to individuals at different times but has
> > not published them.  This is about to change however, as my good friend
> > John "Maddog" Hall at DEC is getting them cleaned up and approved for
> > publication.
> Sounds good. I just wondered because DS3100 and 5000/200 documentation is
> on gatekeeper.

Yeah - it's weird, but just an artifact of history I think.  The 3100
and 5000/200 documentation has actually helped a fair bit (along with
the source to MACH for the DECstations).  I'm off to the US again next
weekend so I won't get a chance to do some more work on the DECstation
port for a few weeks.

Paul M. Antoine,                                        Net:
Softway Pty Ltd                                         WWW:
PO Box 305, Strawberry Hills, NSW 2012, Australia       Tel: +61 2 698 2322
Level 2, 79 Myrtle St, Chippendale, NSW 2008, Australia Fax: +61 2 699 9174

"It is the lack of acceptance of diversity which threatens to 
 destroy society, NOT the free expression of it." - Me.

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