2 hd scsii drives on 1 conrlr, only the smaller is recognized

asime · 02-25-2007, 05:14 PM

First, I attempted to locate CD in a CD-R drive that came with the system. Ubuntu would not boot (fatal sync error?). So, I locate the Live CD in a CD-RW drive and it will boot. I need some help determining why Ubuntu is unable to recognize the larger of the two scsi hd drives connected to the same scsi controller? I've been able to play with the live CD, and in attempting to install, I've been given the option to partition my 2gb drive (Ubuntu fails to install because of the size, I believe), but nowhere can I find reference to the 4gb ibm drive. If I disconnect the smaller (2gb Conner) drive I get a kernal panic attack, and fatal error (this may have more to do with the CD drive though). But, with the live CD in the CD-RW drive it will load Win2000 from the only existing 4gb drive, and doesn't even recognize that there is a bootable cd in the CD-RW drive. ??? Please help.

Tinkster · 02-25-2007, 05:41 PM

Hi, and welcome to LQ!

I don't think that the problem is Linux-related, sounds like cable, ID or termination
problem to me; or is that device being picked-up by other operating systems? Even
if it was - SCSI on Linux is very mature; I'd still assume a hardware issue.

Also, are that CD and CD-RW SCSI devices as well?

Cheers,
Tink

Matir · 02-25-2007, 06:05 PM

Moved: This thread is more suitable in Linux - Hardware and has been moved accordingly to help your thread/question get the exposure it deserves.

asime · 02-26-2007, 07:14 AM

Thanks Tinkster, both drives have been completely functional under Win2000 for several years. Normally scsi is connected in a serial chain, however, this controller has a large connector and a small connector. Both HD drives are connected directly to the controller, and maybe they should not be. I'll rethink this situation and see if maybe that's the problem.

Tinkster · 02-26-2007, 11:15 AM

The SCSI controller(s) I have at my hands have two or three
connectors. 1 is separate, 2 serve the same chain. What's
important is correct termination (in either case). If the
drives were initially chained that means that only one of
them would have been terminated; if the two connectors don't
serve the same bus one drive is now w/o termination.

And I still think it's a hardware issue, not a Linux-question.

Cheers,
Tink