Hey all, Trying to get a fusion drive working on my MacBook Pro. But I am running into some trouble after installing Mountain Lion. I have a 64gb SSD and the 500g HD that came with the laptop. I manage to create the fusion drive, install and otherwise get to the desktop. The problem happens when I run the last update from the App store. After the reboot I am stuck with two drives and none of them will boot. The recovery parition is gone. Seems like the fusion drive breaks with the update and leaves me with two disk that aren't working. But if I boot from USB stick I still see the whole drive and everything appears to be as it should. Any help would be great! Alittle more info I am using disk0s2 and disk1s2. So I am not whiping the disks, I read that this was the best way on notebooks, so I can keep the recovery parition and so on.