There comes a time when it is expedient to know some version information about the EFI firmware running on Apple OS X. In my case, I just wanted to make sure that I had EFI64. I knew I did, but… seeing is believing. As of OS X 10.7.3, to find out information concerning what version of Apple’s EFI firmware you are running, perform the following command at a terminal: ioreg -p I…