> but... my serial ports don't work until I check the 'Serial Boot echo' in 
> the booter's serial port preferences. With this trick I can only use the 
> printer port while the tty00 is still quiet.
> 
> >From the booter manual:
> Open serial port before boot (for PBook) 
> In order for Powerbooks to use the serial port(s), they must be turned 
> on before booting in order to get the Power Manager to turn the power on 
> to the chip and the ports. Setting this option should only be necessary 
> if you are booting NetBSD/Mac68k on a PowerBook
> 
> It seems that even if the "open serial port before boot" is checked the 
> PowerManager doesn't turn on serial ports. Is this possible ?

Yes. We really don't know what the power manager does, so it can most
definitely shut stuff down. I bet that it actually closes all the drivers,
and that that turns off the power.

Take care,

Bill