Package: debian-installer Wrong sound module, snd-aoa, is loaded on PowerMac3,4. Currently the most usable sound driver for this machine is snd-powermac. To make it load on boot, the following modules ought to be blacklisted: snd-aoa snd-aoa-codec-tas snd-aoa-fabric-layout snd-aoa-i2sbus snd-aoa-soundbus and: snd-powermac should be added to /etc/modules. This could be a temporary solution, until snd-aoa will support the machine.