>> Mac II
>>  PMMU 68881
>        ^^^^^ That's the FPU, not the MMU.
>You need to make sure you also have an MMU, 68851, in the machine.
>NetBSD won't run otherwise. :-(

Oops, alphabet soup.

I have the 68881 FPU and I see I have Apple's MMU in the 68851 socket.  I
guess that I need to find the Motorola chip.

Bummer.

Thanks for everyones help!