I had successfully installed Windows 8 Consumer Preview on my mac mini (bootcamp install) but Windows crashed during the upgrade to Release Preview and I removed it a result. But there seem to be some traces of it left.
How do i remove the efi boot entry from the mac's boot menu. I managed to mount the efi partition and deleted the windows folder in it but i still get an efi boot option when I press the option key at startup (of course selecting this entry does nothing now). Is there a boot menu file with the default entries ?
When I try to install windows 8 release preview with bootcamp again (bootcamp does the partition, creates the bootable usb key from the iso and download the windows software) I get the error message :
"The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks"
Yet I see no mbr partition, so I assume there must be some traces left by the windows installer on the mbr of the disk. Is there a way to clean it up ? Or does the error message come from something else ?
EDIT : bmike's suggestion worked