FreeBSD Install DVD corrupted my Mac OS X harddisk

macos boot partition efi

Try this:

  1. Put into the CD tray the OS X Snow Leo install disk
  2. Restart computer
  3. Hold OPTION (Alt) key, select OS X Installation DVD
  4. Open Disk Utility
  5. Select your disk, go to the First Aid Tab.
  6. Follow the instructions. The EFI data on disk shall be restored.

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