Intel-based Macs: No more open firmware

Intel-based Macs: No more open firmware

Apple has informed MacFixIt that the new Macs based on Intel Core Duo processors (the iMac Core Duo and MacBook Pro) will no longer make use of Open Firmware, which has been standard on all shipping Macs in recent memory.

Instead, the new Macs make use of Intel's Extensible Firmware Interface (EFI), which provides an interface between Mac OS X and the computer firmware.

Traditionally, booting into Open Firmware has allowed users to reset PRAM, NVRAM and other boot variables.

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