Date: Thu, 08 Nov 2001 13:12:33 -0700 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: "Koster, K.J." <K.J.Koster@kpn.com> Cc: "FreeBSD Questions mailing list (E-mail)" <questions@FreeBSD.ORG> Subject: Re: On-board adaptec 7880 gives Illegal cable configuration error Message-ID: <200111082012.fA8KCXY63570@aslan.scsiguy.com> In-Reply-To: Your message of "Thu, 08 Nov 2001 19:20:16 %2B0100." <59063B5B4D98D311BC0D0001FA7E452205FDA07E@l04.research.kpn.com>
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>Dear All, > >I have a motherboard with an on-board Adaptec 7880. On the cable there is a >single SCSI disk at ID 0. When I boot off of the FreeBSD 4.4 boot floppies I >get the message ahc0: Illegal cable configuration error, which is supposed >to be due to having more than one cable hanging off the SCSI controller. > >Problem is, there is only a single on-board connector, so there is no way >for me to change the cabling. Here's the deal. The aic7xxx driver can't tell if cable detection is implemented in any given aic7xxx application (it requires logic external to the chip). But, the driver assumes that this logic must exist if the serial eeprom dictates "automatic termination". For your motherboard, automatic termination makes little sense. You have one connector and unless the controller is in the middle of a bus that is elsewhere terminated, termination should be enabled. >Someone in the archives suggested I change the BIOS settings, but I have no >idea what to change. If you specify termination enabled, rather than auto, the driver should properly terminated the bus and not give you an error. >FreeBSD hangs after finding the plip0 device, so I cannot install FreeBSD on >this machine. Any help would be appreciated. I can't say if your hang is SCSI related or caused by some other issue. -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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