IBM Intellistation 275

[George E Sollish]

On Fri, 7 Dec 2012, Will Schmidt wrote:

> Date: Fri, 07 Dec 2012 11:05:37 -0600
> From: Will Schmidt <will_schmidt at vnet.ibm.com>
> To: George E Sollish <gsollish at autogear.net>
> Cc: ppc at lists.fedoraproject.org
> Subject: Re: IBM Intellistation 275
> 
> On Fri, 2012-12-07 at 04:51 -0500, George E Sollish wrote:
>> Hi,
>>
>> Thanks for explaining why it doesn't work, and why crux ppc64 does.  I'm
>> running IBM's last firmware rev on the 9114-275 (...d79e22...) so that
>> avenue's already closed.  I took a quick look at the fairly intimidating
>> webpage Dan suggested --- does the donor fedora system need to be a
>> ppc32/64, or can it be one of my several intel installs?  I like the idea
>> of a smaller boot image, but that's way beyond me.  Is there a chance that
>> could be made available?
>
>> Previously, I've run Crux ppc64 on this machine; currently its running
>> AIX 5.3.
>
>
> Have you tinkered at all with real-base values on the 275 ?
> Historically when one switches between AIX (or AIX based system
> diagnostics CD) and Linux, the real-base values get updated and the
> updated values have potential to confuse the snot out of firmware.
> I've no idea if the later bootloaders correctly handle the scenario, or
> if it's actually a problem that exists with the firmware on the 275, but
> may be worth poking at.
>
> See https://bugzilla.redhat.com/show_bug.cgi?id=527506#c5 and later for
> some comments on that subject.
>
> Thanks,
> -Will

Hi Will,

When I acquired the box I tried installing fedora, failed, and then moved 
over to crux 2.6 ppc64, but finally tired of the inverted color map for 
the 4500P graphics.  At that point I switched back to AIX 5.3.  I've also 
run the 9114-275 diagnostics several times, so you could be right about 
the real-base values.  I read the thread you mention, and I'm willing to 
reset the real-base to see if that is, indeed, the problem; how do I 
proceed?

Thanks.

George E Sollish
Chief Engineer
AUTO GEAR COMPANY, INC

SYRACUSE -- since 1885, the first
name in automotive gearing