OpenCore on Legacy Apple Hardware
This guide explains how to use the excellent
OpenCore bootloader on a classic Mac Pro to install, run and update macOS Catalina, resulting in a clean, unpatched operating system no different than on a supported Mac.
Why OpenCore?
There are several advantages to using OpenCore on a classic Mac Pro:
Boot picker screen (even with a standard graphics card)
View attachment 916024
Software Update (just like on a supported Mac)
View attachment 882160
Hardware acceleration (and DRM for Netflix on Safari)View attachment 919405
Requirements
Mac Pro model | Early 2009 with MacPro5,1 firmware,* Mid 2010 or Mid 2012 |
Processor architecture | Westmere (E56xx, L56xx, X56xx) / Gulftown (W36xx) |
Boot ROM version | 144.0.0.0.0* |
Graphics | EFI (flashed) or standard UEFI card with Metal support |
* Need to upgrade? See the
upgrade instructions.
PART I
Basic Installation
PART II
Advanced Configuration
PART III
Maintenance
APPENDIX
Acknowledgements
A big thank you to
@vit9696 and the other talented developers of
Acidanthera for making all of this possible. Special gratitude goes to
@h9826790 for spearheading the
hardware acceleration study and
@startergo for the relentless testing that led to
boot screen support. And thanks to all those that have contributed to this thread!