Okay, so I downloaded and installed Yellow Dog on my old iMac. I followed the directions on the following site
I partioned the drive into three parts. The MacOS 9.2 part works fine and that's what I want. However, I am having a lot of trouble getting the Yellow Dog Linux part to work. When I try switching from MacOS 9.2 to Linux using BootX, it just gives me a blank black screen, and does nothing. Can anyone help and make it simple enough for someone completely new to Linux to understand?