macOS Big Sur Does NOT Boot with iMac14,2 System Definition

OK so macOS Big Sur Public Beta is now out, and we just wanted to clarify things a bit regarding system definitions. For years we here at tonymacx86.com have used iMac14,2 as the suggested system definition in MultiBeast- it was a basic trouble free universal default. Starting with macOS Big Sur, Apple has decided to drop support for iMac14,2 systems.

In order to test your system definition, navigate to the upper left corner and choose About This Mac. A window will open...

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