I'm adding initramfs-tools since the kernel boots without initrd.img. I also get this message during kernel configuration:
-- [Edgy] Kernel 2.6.17-2-powerpc does not boot on OldWorld Powermac. https://launchpad.net/bugs/50746 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
