OS X & Data Transfer Instructions
Restore your data and operating system after upgrading the boot drive in Macs that shipped without a system DVD.
On Macs that shipped with OS X 10.7 or later, you cannot simply remove the stock drive and replace it with a new one without some initial preparation due to the introduction of a recovery partition that many cloning programs don't account for.
There are two methods you can select to transfer your data and OS. Method #1 is preferred for users that already have the recovery partition on their drive or a broadband Internet connection. Method #2 is preferred for users without broadband Internet access.
The third method listed below provides a process in which a fresh install of OS X is performed on the new drive before migrating your data.