Possible Duplicate:
Install ubuntu on MacBook Pro
I have an old mac (maybe 6 years old) that I want to install Ubuntu on. I have an Ubuntu live cd but when I but it in the cd drive and hold down the the option key when rebooting, the cd is not listed in the boot menu.
The mac came from a company that was getting new computers so I have the feeling that it was some how protected from doing this.
Any idea of what I can do to install Ubuntu?