> -> I'm using a AHA2940AU controller with aic7xxx driver. The drive activity
> -> lights stay on and sometimes on a warm boot, the controller won't
> -> recognize the drive. There is a 50MB DOS partition on the 2 gig drive.
>
> I have a similar problem with a 2940AU, after a warm boot the video won't come
> back on. The machine initializes the SCSI bios (or appears to judging from the
> drive light), but won't boot into an OS. The reset button then correctly
> starts the machine. Replacing the 2940 with a 1540 fixes the problem (or
> rather, replacing the 1540 with the 2940AU introduced it). The problem is
> very incidental and not limited to Linux.
It sure isn't limited to linux. I've seen this problem hit NT as well. The actual culprit is the SCSI SCAM Plug-n-Pray crap in the BIOS. I've seen controllers give this problem if you disabled this option, and others that have to have it enabled to avoid the problem. Whichever yours is, the answer is usually to flip this setting from what it currently is to the other side and things go ahead and work then.
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