Can't boot after swapping motherboards

[smp64]

My motherboard quit and I have replaced it with a similar board.
I simply moved all the bits, parts and pieces over to the new MB,
including the main boot drive. Everything seems to function
except that it fails to mount /dev/root during startup. The boot
drive moved from SDA to SDC on the new MB. I fixed
/boot/grub/devices.map and the swap entry in /etc/fstab, I even
reinstalled the kernel package to recreate the initrd image.
I must be missing something else.

The messages I get are

libata version 1.20 loaded
Unable to access resume device (LABEL=SWAP-sdc4)
mount: could not find filesystem '/dev/root/'
setuproot: moving /dev failed: No such file or directory
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
switchroot: mount failed: No such file or directory
Kernel panic - not syncing: Attempted to kill init!

Any help would be greatly appreciated.

[PilotJLR]

Are you using labels (like SWAP-sdc4) in fstab? If so, you'll need to remove the labels and instead use dev entries. For example, LABEL=SWAP-sdc4 would probably need to be /dev/sdc4, assuming that's really the correct partition.

[smp64]

Thanks for replying PilotJLR, I tried removing all labels and using only hard
links. I even tried removing the 2 RAID drives that this MB locates before
the main SATA controller, no luck. I've been basing the location of the
drives on how they appear when booted from the rescue disk, could this
be wrong??? (Although it does find the MBR, Grub and the kernel image)