To make it simpler can I not install the boot loader at all and use chameleon from the USB until I use clover? Ok right now I have two issues. To change the system model to iMac 13,1 and get dsdt working. Can I attach my dsdt so you take a look at it? Chameleon is having the same problem as clover. In non-safe mode the boot freezes just before the GUI. I already installed fakesmc, so according to you I should have a bootable system in non-safe mode, right.