Why can't I log in after installing new hard drive?I installed a new hard drive on my iMac. The old hard drive was running OS X 10.7 Lion that was downloaded from the app store...
Answer to: Why can't I log in after installing new hard drive?I was able to resolve the issue by first installing Snow Leopard and then creating a new user account so that I could get in and download Lion from the app store. Once Lion was installed I restored all my existing user accounts from time machine. System works like a champ now with the new hard drive.