1.5 I have an OldWorld Macintosh and need to use BootX.It should be compatible with the InstallCD, but on boot it returns an 'Unknown or corrupt filesystem' error. 1.4 I have an early NewWorld Mac such as the Blue and White G3.1.3 Can I dual-boot Gentoo Linux and Mac OS X?.1.2 How can I verify with OSX that the downloaded ISO is not corrupted?.1.1 What kind of PowerPC computer do I have and where can I find more information about it?.