Re: raises a foot for creating the 7.1CD

[Jay Estabrook <Jay Estabrook compaq com>]

On Fri, Oct 26, 2001 at 10:27:37AM +0200, Peter Bech wrote:
> 
> The AS800 has an embedded Q-Logic ISP 1020 (rev 5) SCSII chipset
> integrated on the main board and the CD (RRD47 from DEC) is by
> factory put on ID 4 so it's "DKA400" in the SRM console. There
> should not be anything peculiar with the AS800 and the proof is that
> RH6.2 did not show any boot/installation problems. So there must be
> a simple difference between 6.2 and 7.1 that can explain the
> behaviour. It could be, that the "generic" is not "generic enough".

MANY things changed between 6.2 and 7.1, the most prominent being the
kernel - 2.2.17(?) vs 2.4.3.

And the first thing you mentioned above, that builtin QLogic SCSI
controller, has been problematic even under the 2.2 kernels. I've
test-installed 7.1 in an AS500, which also has one of those QLogics
built in, and the driver for it just does not behave as well in 2.4 as
it did in 2.2. No idea why, just the facts.

One solution I've used is to move the CDROM drive off the bus with the
harddisks - ie put in a old NCR810 controller, or even another QLogic,
just to handle the CDROM. This has worked well on a couple of
QLogic-based systems. For some reason, termination or speed or
something, having only HDDs or only the CDROM on the bus is OK.

Another solution is to use a different driver - some folks (hi Matt :-)
suggest substituting the BSD-originated driver you can find at (IIRC):

	www.feral.com

Good luck.

--Jay++

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Jay A Estabrook                            Alpha Engineering - LINUX Project
Compaq Computer Corp. - MRO1-2/K20         (508) 467-2080
200 Forest Street, Marlboro MA 01752       Jay.Estabrook@compaq.com
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