Adding extra SCSI card to AS500/500

From: John Deacon <jrd_at_star.ucl.ac.uk>
Date: Mon, 02 Aug 1999 14:42:56 +0100 (BST)

Hi All -

I've got an AlphaStation 500/500 with 2 internal disks (rz3 and rz5) a
CDROM (rz4) and 4 external disks (rz0, rz1, rz2 and rz6). I've just now
added a second SCSI card (a KZPDA-AA) in one of the PCI slots and have
plugged in an external DAT drive (SCSI ID 5).

At the console prompt the original SCSI card shows up as pka0 with devices
DKA0, DKA100...etc and the second SCSI card is pkb0 with the tape drive
MKB500. All as expected.

The problems start when I boot the machine. DKA300 is the boot device
and everything starts off fine until the boot prcedure gets to the point
where it probes the devices, at this point it detects the new SCSI card
first and picks up the tape drive as tz5 and then it detects the original
SCSI card with devices rz8, rz9, rz10...etc. Not surprisingly it then
falls over when it tries to mount rz3 as the root file system because it
thinks its now rz11...

Have I missed some thing obvious here, why does it first detect the cards
one way around and then swap them over during the boot process ? How do I
get the new card to appear as the second card when the machine boots ?

cheers,

 john

----------------------------------------------------------------------------
John Deacon | UCL Starlink Site Manager
Dept Physics and Astronomy | Email: jrd_at_star.ucl.ac.uk
University College London | Tel: 0171-380 7147
Gower Street London WC1E 6BT | Fax: 0171-380 7145
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Received on Mon Aug 02 1999 - 14:02:07 NZST

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