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Re: challenge s boots linux

To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Subject: Re: challenge s boots linux
From: Richard Hartensveld <richardh@infopact.nl>
Date: Wed, 23 Sep 1998 22:54:22 +0200
Cc: Alex deVries <adevries@engsoc.carleton.ca>, Rob Lembree <lembree@sgi.com>, linux@cthulhu.engr.sgi.com
References: <36081982.8D3B6975@infopact.nl> <Pine.LNX.3.96.980922201845.10292B-100000@lager.engsoc.carleton.ca> <19980923212241.01963@alpha.franken.de>
Sender: owner-linux@cthulhu.engr.sgi.com
Thomas Bogendoerfer wrote:

> On Tue, Sep 22, 1998 at 08:24:20PM -0400, Alex deVries wrote:
> >       First, I wonder how much of the kernel will actually work on the
> > Challenge S; I'm told there are SCSI controller differences.
>
> looking linus.linux.sgi.com, which is AFAIK a Challenge S, it seems the
> Challenge has a wd33c93 and a wd33c95. The wd33c93 is what we already support.
> As long as the harddisk are attached to it, it should work. The wd33c95
> is a rather strange chip, and from the datasheet I have here, it looks like
> a lot of work to write a driver for it, because besides the kernel code,
> you have to write sequence code for the chip, too.
>
> >       The install kernel you're using (and oh god, is it ever a bad one)
> > is broken in that serial console won't work.  Yes, I should have looked
> > into it way back when.
>
> When I did the new console code, I first made the serial console working.
> As far as I remember I had to do some ugly hacks, but I'll try to clean
> it up and check it in.
>

I'm going to build the cross compiler right now and get myself involved in
linux/sgi porting, i've got
a reasonable amount of sgi's overhere to test on and maybe even get linux to 
boot
a kernel on a non-indy machine.

Richard


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