Quote:
I would almost guess that one of the drives isn't responding but the boot process shows no errors. (?)

This bit of your boot log doesn't look at all good:

Quote:
ide_data_test: wrote 0x0000 read 0x0080
ide_data_test: wrote 0xffff read 0x0080
ide_data_test: wrote 0xaaaa read 0x0080
ide_data_test: wrote 0x5555 read 0x0080

Looks like you have an intermittent IDE failure.

Peter