djrhettmc Posted January 21, 2010 Share Posted January 21, 2010 DUMBEST thing I have ever done. I have built my own OSX86 box. I am smarter than this. Accidently used MyHack to ruin my firmware/EFI on my 'authentic' real iMac (Early 2008), model 8,1 There is ZERO information on 'firmware restoration' on Apple.com support. I CAN boot to the original Leopard system restore OSX installer. Have tried restoring from Time Machine. Won't boot. Only white screen instead of the Apple logo. HOW TO RESET? Anyone hosed a real Mac with MyHack installer accidently? I CANNOT be the first.... Thanks for ANY info! The local shop reccomends trying to install again via Target disk mode.... I need firmware restored, the problem is NOT on the hard drive... How to 'flash' the EFI firmware, now wrecked by Chameleon...????? Rhett (rhettt@gmail.com) Link to comment Share on other sites More sharing options...
RSN Posted January 21, 2010 Share Posted January 21, 2010 I dont think there is anything to do but reinstall your Mac. Chameleon states that you shouldnt install on real Macs, doesnt say exactly why but neither does it say how to recover. Hope you can, and please let me know. I know ONE OF THESE DAYs Im going to do that too... Link to comment Share on other sites More sharing options...
djrhettmc Posted January 21, 2010 Author Share Posted January 21, 2010 Oh believe me I have tried to reinstall... 1. Restore from Time Machine 2. Fresh install of 10.5 from factory 'hardware restore OSX installer" Still won't boot from anything BUT that hardware restore disk.... Will try installing via Target Disk Mode tonight.... Link to comment Share on other sites More sharing options...
RSN Posted January 21, 2010 Share Posted January 21, 2010 Youre kidding !!!!! Link to comment Share on other sites More sharing options...
realityiswhere Posted January 22, 2010 Share Posted January 22, 2010 myhack does nothing to firmware. boot to the snow leopard disc using either 'c' or 'option' held down on the keyboard. in one of the menus there'll be a 'startup disk', use it to boot to the installed OS on the hard drive, from within the installed OS re-bless the hard drive like normal. sudo bless --folder=/Volumes/[yourhddname] --file=/Volumes/[yourhddname]/System/Library/boot.efi --setBoot these GUI tools like myhack are idiotic, just FYI. Link to comment Share on other sites More sharing options...
djrhettmc Posted January 22, 2010 Author Share Posted January 22, 2010 Thanks realityiswhere... I knew there should be a Terminal command somewhere to get things booting again.... Will post back my results. Link to comment Share on other sites More sharing options...
djrhettmc Posted January 24, 2010 Author Share Posted January 24, 2010 remedy: i ended up having to re-install from factory OSX installer DVD. crashed/froze at end of Disc 2 content. Hard Reset. It installed Disc 2 content AGAIN, restarted successfully, WELCOME TO MAC OSX. Time Machine restore after that and I am back 100%... MyHack is a nice 'dummy proof' tool for OSX86, but WHY is the default install location "Macintosh HD"? Why no, "Sorry, try choosing a USB drive instead. You could be ruining your Macintosh install." popup dialog? I have learned from my mistake. RM Link to comment Share on other sites More sharing options...
Recommended Posts