I've got a FC2 system and a scsi disk with /boot and /. In addition, I have two other scsi disks with /home and /usr/local on them (call the disks A and B). Both of these disks have their IDs set to 6. When I boot the system with disk A, disk A can be found and the boot succeeds. When I replace disk A with disk B, disk B can not be found and the boot fails. Other than the possibility that disk B is bad, what else could be the cause?
The boot disk is a 7500rpm Quantum. Disk A is a 10000rpm Maxtor. Disk B is a 7500rpm Quantum. Back in my RedHat 9 days, the system used both Quantum disks.