Even if you have a GPU that does not offer a boot screen, you can get to the recovery partition! But first, it’s a good idea to check if your system even has a recovery partition.Don’t fart in an elevator, and inhaling toxic fumes is bad for you. Noone but you is liable if anything goes wrong. Unfortunately, this being the world it is, a disclaimer. So to keep this applicable to everyone, I’ll recommend you only have one screen connected. Most people won’t have to do this, but some graphics cards have issues getting to the recovery OS when multiple displays are connected. – If your Mac has multiple displays connected to it, disconnect all but one of them.

zip file downloaded to your system with everything you need to install OpenCore on your Classic Mac Pro. Pick and download the latest one (0.7.1 at this time of writing) – Martin Lo’s preconfigured OpenCore for the cMP package.įor that package, go to this page, scroll down until you see all the attachments. – 144.0.0.0.0 Boot ROM (You get this by running the Mojave installer and just doing the firmware update that is a part of it) Most of the text in this guide is simply explaining stuff, so don’t let the fact you see a bunch of text scare you off, this really is a simple process.

This guide may have steps in it that are not needed for most people, but I include them so that the guide can work for anyone that reads it. This post is the quick and easy guide that should have anyone up and running with OpenCore on the cMac Pros in minutes. I have no experience (yet) with other versions of OpenCore, such as the Legacy patcher, but I fully intend to explore that as well at some point. If you don’t know what OpenCore is, read about some of its benefits here. OpenCore is, for lack of a better word, amazing.

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