How do I upgrade an iMac9,1 from OS X 10.5.8 to Yosemite?
What is the process for upgrading an iMac9,1 from OS X 10.5.8 to Yosemite? I believe I need to purchase a Snow Leopard disk from Apple, then I can upgrade to Yosemite for free - is that correct?
iMac, Mac OS X (10.5.8), iMac9,1