RAID-0 -> single drive -> RAID-0 doesn't work

[ioport]

I have cloned a RAID-0 boot drive (10.4.8) of 3x Raptors on my Mac Pro, to both an internal and external FW400 drives.

The Mac can boot fine from either of these drives.

However if I restore that clone back to the RAID-0 boot drive, the system can't boot anymore. I get strings of "Still waiting for root device" messages if I switch to verbose mode when booting.

So how exactly can I do a perfect clone of my RAID-0 boot drive that can be restored back and that can boot?

Note: Super Duper 2.1.3 v80 used

[ioport]

I managed to restore the clone made by Super Duper back to the RAID-0 using the restore feature of Disk Utility and that disk can boot fine now , but I don't know how reliable it is compared to Super Duper...that is if everything got copied back in perfect state.

[dnanian]

Disk Utility should work just fine from an SD! copy.

The problem is likely that your "mach_kernel" is split over platters. If you restore with SD! and it won't boot like that, try re-copying (by hand) mach_kernel from the backup to the drive...