Can I run Mac OS 9 or Mac OS X under Gentoo Linux?
Yes, as long as you are running Gentoo Linux on 32 bit PPC hardware, you can use Mac-on-Linux which allows you to run an instance of OS 9, OS X or Linux as a process on Linux. Simply emerge mol to install this package. MOL supports Mac OS 7.5.2 to 9.2.2, as well as any version of OS X. It can be run from a console framebuffer or run in a window on X.