While booting from CD with the 1.5Alpha image the boot starts up and
proceeds until it looks as though it doesn't recognise the CD...

boot device:<unknown>
root on mda dumps on md0b

are the last things it writes to the screen before it hangs. I read
through the list archive and noticed someone else had this problem but as
far as I know, I don't have ATA-66 on this G3/400 [no firewire] Powerbook.
I attempted this with both the ofwboot.elf and the netbsd kernels. 

I really would like NetBSD on this laptop and would appreciate any 
suggestions.

e.