Had a bit of trouble installing the final released version of Yosemite.
Before the install I made an Install USB flash drive Install Disk using the Terminal Method.
I tried to install it over Yosemite PB6 that was installed on my Boot SSD. I installed it three times, and the version number never changed to 14A389, and I knew it wasn't installing because I didn't have the install process on startup.
I then tried to startup from the USB stick, and during install, the Mac turned itself off. Went back and started up on Mavericks, and tried to repair the Yosemite SSD, and it was corrupted beyond repair.
So, I erased that Yosemite SSD and cloned the Mavericks SSD to the newly erased Yosemite SSD. I had kept the Mavericks SSD up to date.
I then restarted with the USB stick, and all went well from there.
Lou
Before the install I made an Install USB flash drive Install Disk using the Terminal Method.
I tried to install it over Yosemite PB6 that was installed on my Boot SSD. I installed it three times, and the version number never changed to 14A389, and I knew it wasn't installing because I didn't have the install process on startup.
I then tried to startup from the USB stick, and during install, the Mac turned itself off. Went back and started up on Mavericks, and tried to repair the Yosemite SSD, and it was corrupted beyond repair.
So, I erased that Yosemite SSD and cloned the Mavericks SSD to the newly erased Yosemite SSD. I had kept the Mavericks SSD up to date.
I then restarted with the USB stick, and all went well from there.
Lou