Translations:PPC/FAQ/20/en
From Gentoo Wiki
After partitioning, install Mac OS X and Mac OS 9 onto their respective partitions. Once installation is complete, start following the PPC Gentoo Handbook. When you get to the section on partitioning, use mac-fdisk to delete the large partition you created for Gentoo. In its place, create a bootstrap partition, root, swap, and any other partitions you wish to use with Gentoo.