I'm trying to reset the root password of a SGI O2 by mounting the drive and editing it with a PC. The O2 has a 80 pin SCA drive, and the PC has an Adaptec card with a 50 pin ribbon. I'm using a cheap SCA to 50 pin adapter that I purchased off of ebay, with the SCSI ID set to 0 (no jumpers attached). When I boot the PC, the SCSI card hangs and eventually prints a dump (attached) and fails to recognize the drive. I've attached other 50 pin drives to this card without issue, so I'm wondering if the issue is with the SCA to 50 pin adapter or something else. I have no idea how to debug Adaptec SCSI card dumps, so if anyone wants to take a look at the dump (attached) that would be very helpful.