Comment 44 for bug 222126

For those people who don't know how to get their machine to boot again after this bug happened, I'll copy 2 lines from IRC here:

<pgraner> Press Option-Command-P-R until you hear two beeps, that will reset the NVRAM
<pgraner> then see if it will boot, there is enough efi code in the NVRAM that by resetting it you prob can boot by: Press C during startup with a CD in

It is also (in a bit more detail) explained here: http://support.apple.com/kb/HT1379