help w/ ppc kernel upgrade. debian 3.1 mac mini


I am looking for a walkthrough or howto to upgrade the kernel on my mac mini
debian system.

It currently has a vanilla install of Debian Sarge 3.1 kernel 2.6.8

I need to upgrade the kernel to provide audio hardware support.

I have tried to install a kernel that is prepackaged from but
I am unable to make it boot properly. The kernel gets scared, and cannot
mount a partition (3,3) I believe I am not configuring yaboot properly.

Any help is greatly appreciated.