I just put 1.2.1 on an IPC, with a serial console.
I noticed that the prom and netbsd boot stuff uses even parity, and
that the netbsd login prompt uses none.   While I probably can change
the former in the bootrom, I was wondering if this could be part of
the 'no serial console on IPCs' problem others reported.
(Other than this, the installation was very smooth - it's much easier
than it used to be!)