I moved my (fully working) OSX 10.7.4 installation from my old ESXi 5 white-box (with an Intel i5 720) to a new one (with an Intel i7 3770). And guess what: OSX didn’t boot.

Just some lines and this last output:

Root device UUID is xxxx.xxx.xx.xxxx

Crap. Google just came back with two (2 !) search results, neither of them giving me a solution. But wait, I’ve found it anyway:

– edit the VM settings with the VM powered off
– click on the Options tab
– click on the CPUID Mask menu item
– click Advanced
– scroll to the bottom of the window on the Virtual Machine Default tab
– under “Level 1” set “eax” to 0000:0000:0000:0001:0000:0110:1010:0101.

After clicking OK and OK, boot up the VM and voilà, your OSX installation is running again!

Yahoo!