>> Yes, that is the case. System is booting up fine, entering the installer and
>> autoselecting the first step in the d-i menu. And so forth, as described.
> Have you tried it on something else than apple hardware ?
> yaboot-installer also fails on ibm js21 blades and other power5 boxes.
No apple hardware, it is an IBM OpenPower 720 ;) Bit bigger than an apple ;)