boot0: error

Hey everyone. This is my first build and it's been going well but I'm hung up on the infamous boot0: error after using multibeast. I tried using the official guide: http://www.tonymacx86.com/25-boot0-error-official-guide.html I got hung up on trying to unmount the disk with ML on it. When I...

Cannot boot without UniBeast, I've tried MacMan's guide. Help! So, I've been going for pretty much 40 hours straight trying to get this thing working. :headbang: I've almost reached my goal but I'm not there just yet and I'm hoping for someone here to be wise and able to help. I've followed...