I have macbook with leopard. I want to upgrade it into snowleopard. But I found 2 types of dvd, upgrade version and full version. What is the differences and advantages between full and upgrade? If I buy the full version, could I install it in my mac(leopard)? Because I found more easily the mac box set (full version) that is cheap.
Thanks
You want the full version.
Allan
The 10.6.3 white retail disk (so called "upgrade disk") sold online at Apple are full version disk of OS X Snow Leopard, however it also has a upgrade installer for OS X versions 10.4 and 10.5.
So if you boot the Mac into 10.4/10.5 and stick the DVD in and double click the upgrader, it will replace 10.4/10.5 with 10.6.3 and leave your programs and files alone.
If you stick the same disk in and boot the machine while holding c or option/alt key down (wired/built in keyboard) you get the opportunity to use Disk Utility (and others) and can erase the entire drive and then install OS X 10.6.3 Snow Leopard fresh. However this disk is sans-free iLife, but can be reinstalled via the 10.5 machine disks.
I don't know the specifics of the full version of the Snow Leopard install disks as I never used them, or what particular advantage they have (free iLife?), but if it requires a erase and install, then that's a disadvantage obviously as you can't carry over your already installed 10.5 programs.
OS X 10.4/10.5 need to upgrade, 10.6.8 ok still
How to erase and install Snow Leopard 10.6
Snowleopard upgrade and full version
