willmurray461
Experienced Member
I've been having some problems trying to boot off of one of my SCSI hard drives on my PS/2 Model 80 and 90. It's a 1GB IBM OEM Apple branded DPES - 31080, SCSI ID 6, no other options enabled with jumpers. I've been able to boot off of it in my Model 80 using the original SCSI Adapter/A, but not with the SCSI w/ Cache (Spock, 2MB) in the Model 80 and 90 or the SCSI-2 F/W (Corvette) in my Model 90. I've installed an operating system (DOS 6.22), but whenever I try to boot off of it with the Spock or Corvette, it says "Missing Operating System" (Model 80) or "I999302 Invalid Disk Boot Record" (Model 90). It will boot fine with the SCSI Adapter/A though. I can read the disk with the Spock and Corvette if I boot off the DOS 6.22 floppy. I've tried it in a Type 3 complex and Type 4 (level 10) complex in my Model 90's and my Model 80 w/ Spock, but none of them will boot off of it. I haven't been using a SCSI terminator plug, but the Spock and Corvette are auto-terminating if I recall correctly. I've read online and it seems that I should have no problems trying to boot off the drive with my hardware. All of the controller cards boot and read smaller drives fine (545MB SCSI-2, 320MB SCSI-1, 160MB SCSI-1).The jumper settings for the drive are available here. Any help would be appreciated.