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PCI bus not detected

Posted on 1997-03-16
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Last Modified: 2013-12-15
Hi,

I've tried to install the Slackware 2.1 distribution packed into Infomagik set of August 96.
Booting aha2x4x.s and color.gz gets me to the root prompt, but the PCI devices are not recognized : scsi hosts : 0 and cat /proc/pci shows nothing...

So I've tempotrarily installed an EIDE HDD and installed linux on it. But again, nothing is seen on the PCI bus.

/var/adm/messages says :

...kernel: pcibios_init: BIOS32 Service Directory structure                                         at 0x000fd5d0
    "           "      : entry in high memory, unable to                                         access
    "           "      : no BIOS32 detected

It seems that pcibios_init() routine is in bios32.c module.
Since I don't have my EIDE disk anymore, I cannot go on investigating...

The system is a Digital Personnal Workstation 6200, which is a PPro-200, AHA2940UW SCSI adapter and a Matrox Millenium graphic adapter, both on the PCI bus.
None of them is detected by Linux.

I've posted twice on linux-setup and got no answer.
I know that other people complain about (same HW) it and got no solution either.

Thank's in advance for your help and bets regards !


Thierry Agassis / Switzerland
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Question by:tag031697
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by:bjacobs
ID: 1626816
How old is 2.1? Are you sure it supports a PCI bus?
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timc earned 200 total points
ID: 1626817
The SCSI device driver and PCI code has come a LONG way since August 1996 (and especially since Slackware 2.1).  Try and obtain a newer Linux distribution (say RedHat 4.0 or 4.1) and try that. Something with a 2.x kernel will be a big step over 1.2.13, and the improved PCI support will probably allow the DECs bus to be recognized.  Even if the bus is not entirely recognized by type at bootup, chances are it will at least be detected better than what it is currently.

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