That's not true, i used the upgrade disk to install snow leopard on a brand new hard drive.
install dvd lets you do a fresh install (format drive). upgrade dvd upgrades you from leopard (no format option)
I just used an upgrade DVD to install Snow Leopard onto my brand new 500GB drive.
The difference is in the Cover/Artwork of the CD... One says Upgrade, the other Install.
Yeah forgot about the packaging... My Upgrade DVD came the sameOh yeah, and the packaging - does the retail copy come with anything fancy in the box?
My upgrade disc came in a paper CD sleeve and the thin booklet, in a brown padded envelope.
Ask the previous owner for the install disks. If he or she doesn't have them, you will have to buy from Apple.I can't install the upgrade as a full install. I have erased the drive, but the install (upgrade OS X 10.6) on restart tells me that I need to have 105 or higher installed, then it only gives me the option to restart or restore from a time machine backup. This is a new/used computer that the old owner wiped. I followed all of the steps with erasing the drive first myself, but I still can't figure out how to get it to install?