Bug 6772 - Multiple Adaptec SCSI cards get loaded in the wrong order
Multiple Adaptec SCSI cards get loaded in the wrong order
Product: Red Hat Linux
Classification: Retired
Component: installer (Show other bugs)
i386 Linux
medium Severity high
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Assigned To: Matt Wilson
: 8038 8044 8324 10097 (view as bug list)
Depends On:
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Reported: 1999-11-06 00:46 EST by kevinmills
Modified: 2008-05-01 11:37 EDT (History)
0 users

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2000-02-22 10:08:02 EST
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Description kevinmills 1999-11-06 00:46:01 EST
During the install, my Adaptec 2940UW was detected and my
hard drive was found as /dev/sda.  My CDROM and Jaz drive
are on an Adaptec 1542 and, after choosing that driver, the
Jaz was detected as /dev/sdb.  Installation proceeded
normally.  However, upon re-boot the Adaptec 1542 driver
was loaded first causing my Jaz to be /dev/sda.  The
aic7xxx driver loaded next and made my hard
drive /dev/sdb.  This caused a kernel panic - no root fs.

My /etc/conf.modules file *does* list them in the correct
order; the aic7xxx driver is first and labled
scsi_hostadapter and the 1542 driver is second and labled
scsi_hostadapter1.  However, they do not load in this order.
Comment 1 Jay Turner 1999-11-09 10:54:59 EST
I am forwarding this to a developer for further action, but in the
mean time, you can try the following and see if it helps you out.

In conf.modules, on the aic7xxx line, add "aic7xxx reverse_scan"
which should force recognition in the reverse order.
Comment 2 kevinmills 1999-11-18 17:40:59 EST
More info:

adding the reverse_scan line did *not* change the behavior.
Comment 3 Anonymous 1999-12-01 14:01:59 EST
I had the same problem with two SCSI adapters. I fixed it by changing
scsi_hostadapter to scsi_hostadapter0 for the adapter that the hard drive is on
(and leaving scsi_hostadapter1 for the adapter that my SCSI zip drive is on.  It
appears that the one for the second card is ignored unless you have a zero for
the first card
Comment 4 Jay Turner 2000-02-09 21:37:59 EST
*** Bug 8324 has been marked as a duplicate of this bug. ***
Comment 5 Jay Turner 2000-02-09 21:45:59 EST
*** Bug 8044 has been marked as a duplicate of this bug. ***
Comment 6 Jay Turner 2000-02-09 22:13:59 EST
*** Bug 8038 has been marked as a duplicate of this bug. ***
Comment 7 kevinmills 2000-02-10 12:17:59 EST
I tried adding a '0' to scsi_hostadapter and saw no difference.  It behaved
exactly the same no matter which card was scsi_hostadapter0 or 1.
Comment 8 Jay Turner 2000-02-22 10:07:59 EST
This issue is resolved in the latest cut of the installer (available in beta)
Comment 9 Bill Nottingham 2000-03-09 14:48:59 EST
*** Bug 10097 has been marked as a duplicate of this bug. ***

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