Date: Wed, 30 Apr 1997 15:37:44 -0500 (CDT) From: "Daniel M. Eischen" <deischen@iworks.InterWorks.org> To: questions@freebsd.org Subject: Re: NEC SCSI CD-ROM question Message-ID: <199704302037.PAA15354@iworks.InterWorks.org>
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> System configuration: > Pentium Pro 200MHz > Adaptec 2940 UW controller > 2G drive, FreeBSD 2.2.1 on a 1G partition > NEC CDR-1910 8x SCSI CD-ROM > > The system doesn't recognize the CD-ROM at boot and hangs for a few > minutes while trying to probe the drive. The message that finally > comes up is something like "ugly hard reset". > > Does FreeBSD recognize NECs? They're not explicitly listed in the set > of supported devices at www.freebsd.org. Would it help to reorder the > SCSI numbering of my existing devices? The controller has two internal > buses: a 50-pin that the CD-ROM is on and a 68-pin that the disk is > on. Should I get some sort of internal converter to move the CD-ROM to > the 68-pin? There are some bugs in the FreeBSD-2.2.1 release of the aic7xxx driver. They have, for the most part, been fixed in the -stable branch. But I don't think these bugs should prevent your from installing and then rebuilding -stable from source. Check cabling and termination. Boot with verbose (at the boot prompt enter -v) and see what options the driver uses for termination. Are you using auto-termination in SCSI Select Utilities? Try setting low off and high on (I think that's right for your configuration). You also cannot use external devices in that configuration - you're not using any, right? Make sure you have the last device on each SCSI cable properly terminated, too. Dan Eischen deischen@iworks.InterWorks.org
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