Topher Kessler over at MacFixIt has posted an article on installing Snow Leopard, and it reveals some interesting changes:
Inserting the Snow Leopard DVD I double-clicked the install icon, expecting to have it reboot to the DVD as all other OS X installations have required. This was not the case with Snow Leopard, which instead launched a grey-themed installer program that allowed for me to select various options such as printer drivers, QuickTime 7, and Rosetta, all while OS X 10.5 was still running in the background. There are no options to select the installation method (archive and install, or otherwise), which was rumored to be the case before Snow Leopard’s release. In order to do a clean install, you click the “Utilities” button and the installer will then boot directly to the DVD and allow you to use Disk Utility to format your hard drive. Quicktime 7 is installed by default and can be deselected, but on the contrary Rosetta is not checked by default, which is surprising because it is only a single 1.9MB application; however, having it this way clearly shows Apple’s progressive intent to move away from PowerPC. I decided to install Rosetta because a variety of utilities and other packages I use are still PowerPC only.
