[massiverobot]

Unless you really have 7 hard disks attaches, you have a conflict between your disk and the SCSI controller. This usually means the disk is jumpered for SCSI ID #0, which is already taken by the SCSI controller. You cannot change the ID of the controller, so you should change the device ID of the disk. Normally, in MIPS/IRIX systems the system disk is ID #1.

Ugh- I solved this. I had gotten an active terminator for the back SCSI port and assumed you need it on. It was causing that issue the whole time. I finally realized I didn't try this without the terminator on the back of the Indigo- when I yanked it off and booted the SCSI2SD was perfectly normal.