Have you tried the unofficial installation diskset from <http://www.debian.org/~adric/aic7xxx/>? I'm not sure about this specific problem, but it handles a lot of other issues with the various Adaptec SCSI controllers.
On Fri, Jul 16, 1999 at 10:16:24AM +0200, Jure wrote: > Hi All > > I have a problem with Intel XPress Server. It is using Adaptec dual > chanell SCSI controller aic-7770 EISA, BIOS revision 2.11 S3. The > kernel recognies it but after the initial detection the following > error occures: > BUG! Driver accessed chip without first pausing controller > "then somthing i can't see".. eror(0x1). > I cannot boot into install. Did anyone had the same problem, please help. > If I disable SCSI bus than everything is ok, but of course i cannot > access my HD.