On Fri, 22 Oct 1999, Mario Dix wrote:
> Hi,
>
> I checked all termination things, cable etc. again and again. I am doing this
> for years now and would be very happy to find the problem at my end.
> I doubt that there is the problem. At the moment I am using an (active?) AMP
> -Terminator, but I also tried to terminate directly at the CDROM, which is
> pretty easy.
Given your CD/ROM runs 5 MB/s, a passive terminator should suffice if the
CD/ROM is the only device on the BUS.
> The most important fact to me is that with exactly the same HW-Setup the
> installation of RH6.0 works, but RH6.1 fails.
> Below I atttached a few details from the current RH6.0 installation.
IIRV, your chipset has been reported to possibly have problems with some
posting feature enabled, so I suggested you in my previous posting to try
disabling such kind of features from MB setup. It would be interesting to
find some IO testing that makes problems under official linux-2.2.12 with
the ncr53c8xx driver and then give a try with the sym53c8xx driver instead
(that may fail or just succeed). Then run the same testing under 2.2.11,
2.2.10 using successively the ncr driver and the sym driver. This may help
isolate the diffs that makes problem (assuming it is a software-related
problem). It is important for me that the kernels being used be
'official' ones, since I donnot have redhat sources.
> In about an hour I'll try to install RH6.1 again from scratch with exact the
> same HW-Setup and hope I can post as much as possible information to you.
An installation that failed is not that fine at collecting informations
for debugging. On the other hand I have not time to investigate all
possible vendor variants of Linux based O/Ses. And btw, if I want to have
latest CD/ROM from Linux vendors, I would have to buy them without needing
that stuff for my personal usage. I am very happy to contribute to Linux
kernel project, but am not going to buy more stuff than what I actually
need.
Regards,
G�rard.
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