Intel developed the latter for use with Itanium-based systems, but if you’re interested in a more elaborate explanation please look here:Ī GPT formatted disk does not contain a “real” Master Boot Record.
An Intel-based Mac uses Extensible Firmware Interface (EFI) with a GUID Partition Table (GPT) formatted disk. This is nothing new to most, but many folks who are interested in running Windows on their Mac still do not know how it works.Ī classic x86 (PC) machine uses Basic Input/Output System (BIOS) with a Master Boot Record formatted disk. The essence of an Intel-based Mac is the new firmware and disk partitioning scheme. Have you ever wanted to know what’s under the hood when you run the Boot Camp wizard? Ever wanted to modify a Mac GPT disk with an existing HFS+ partition to allow a Windows installation to occur without having to boot from the destination disk to begin with (“Target Disk Mode”)? Read on… This Tech-Recipe will show you how to MANUALLY modify an existing Mac hard disk to allow a Windows installation.
