Caveman.
Active member
Long story short I tried to reformat my hard drive on my G4 Powerbook. I erased the hard drive then tried to reinstall OS 10.4 Unfortunately the disk I had was an upgrade to 10.4 from any version of OSX. I bought this computer used 2 and a half years ago off of Ebay from a computer store. Kind of pisses me off that this is the only disc they sent me and it doesnt say on the disc that it is just an upgrade. I tried installing my friend's version of OS 10.5 and I get a message saying "this operating system cannot be installed on this computer" Does anyone have any advice on what I should do or have an OS they could hook me up with?