JKatzman Posted November 2, 2009 Share Posted November 2, 2009 Hello, well I had a perfectly good running Hackintosh and I went to edit the graphics card and ended up messing everything up so I knew that was going to happen and backed up my entire OSX hardrive with Carbon Copy Cloner, and once everything messed up restored my hardrive to the .dmg Now when I try and boot from anything, USB, Hard drive, CD I get: boot0: GPT boot0: testing boot0: testing boot0: error and I can't get into anything, so I can't even follow the tutorial on making my hardrive active. Any advice? Link to comment https://www.insanelymac.com/forum/topic/195553-boot-error/ Share on other sites More sharing options...
MacNutty Posted November 3, 2009 Share Posted November 3, 2009 Boot from OSX install disk. Go to terminal and type following commands: fdisk -e /dev/rdisk0 (replace 0 with your disk where OSX is installed) flag 1 (replace 1 with your OSX disk partition) update write quit reboot. Link to comment https://www.insanelymac.com/forum/topic/195553-boot-error/#findComment-1318352 Share on other sites More sharing options...
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