To sum it up: It sucked! I never got past the login screen.
I’m a big fan of Apple and was really excited to hear that the new public beta would be available to me, yes me, on July 24th. This was my golden ticket of geekiness in the form of an email from Apple. I promptly downloaded the latest OS X operating system using the App Store (just over a 5 GB download size) and started off the installation.
An important note: always use Time Machine (or better yet, create a duplicate backup using something like SuperDuper!) to create a backup before doing anything like this; even if it’s the final release. It saved my butt on this one. Fortunately, I took my own advice on this one.
After about 45 min I was ready to go on the login screen, then the following video happened. The 18th second was my favorite moment.
Screen flickering, graphics distortion. I tried restarting. Nothing. I tried repairing permissions in the Disk Utility (boot using CMD + R). Nothing.
Fortunately they built in a fix, which wasn’t really a quick fix, but it got me back to running again today. Restore from Time Machine backup. It’s a menu item when you access your restoration software; again, hold down CMD + R when booting your computer. The process took about 11 hours (wish I had a Thunderbolt drive), had to reenter some passwords, but all seems ok.
Yes, the software is a public beta, but that was seriously disappointing Apple.