These are the notes for build CLFS on a Wallstreet G3 Laptop.
You can skip Yaboot, You will need a small MACOS Partition and Bootx http://penguinppc.org/historical/benh/BootX_1.2.2.sit
For the bravo who don't want to use Bootx. Try http://www.shiner.info/?info/miboot.txt The Linux 2000 PPC bin they reference is available at http://www.cross-lfs.org/~jim/LinuxPPC_Install.smi.bin
I use a 50mb MACOS partition and the remainder of the drive
For Sound to work properly, you will need to add the following to modprobe.conf
alias snd-card-0 snd-powermac
alias sound-slot-0 snd-powermac
You will also need to add the following line to any booloader used