1. Now only the last step remains: install macOS Big Sur on your unsupported Mac. Just look for the file InstallAssistant.pkg that you downloaded. Open it and the macOS Big Sur installer will appear. Select the disk partition to install the new system and the macOS Big Sur installation process will begin.
2. Sadly, these Macs are way too old to even boot Big Sur, so they do not support this patcher. Note: 2008 Mac Pros do work with Big Sur, but not with this patcher. I recommend checking out StarPlayrX's BigMac Patcher for those.

Nov 02, 2020 How to Download macOS Big Sur on Unsupported Mac An EliteMacx86 Exclusive Guide - This guide covers downloading a copy of macOS Big Sur, unofficially. Overview Recently, Apple announced their new macOS lineup i.e macOS Big Sur 11.0 which is Apple's newest and most awaited OS. First thing first, the version number. Yes, we are now looking at macOS 11, after roughly 20 years of macOS 10/Mac OS X incremental updates. Well, with the release of this new version which will be available on Apple Silicon-based Macs and which introduces a totally new design, Apple taught it was time.

Run Macos Big Sur On Unsupported Mac

You start with creating a bootable USB with info from this post. Just pick Big Sur instead of the mentioned High Sierra.

Building/installing the patcher

Mac Os Big Sur On Unsupported Macs Os

After that follow these instructions,on how to install and use the OpenCore Legacy patcher.

• Erase/format the MAC HD/SSD before installation !! I really think that this does it more simple for the installer !!
• 'Mac OS Extended(journaled)' with an old non SSD HD
• With en SSD use 'APFS'
• The Mac rebooted several times during install.
• Don't remove the USB until at the very end.
• If you, like me, have a Mac which need the legacy video acceleration support please note that the Mac have a painfully slow display update before you have applied the 'Post-Install volume Patch'.
• Updating the Mac from Big Sur 11.4 to 11.5, made the messages.app stop working fixed in release 0.2.4
• Please note that 'Nightly Builds' are available but are for testing purposes only !!!

Download link: How To Install MacOS Big Sur 11 On An Unsupported Mac, IMac, Mac Pro Or Mac Mini In 2021.mp3

Today I will show you how to Install macOS 11 Big Sur on an Unsupported Mac.
To be clear this guide shows you how to install Mac OS Big Sur, it is up to you to backup your data first and use Big Sur at your own risk, I am not responsible for any loss of data etc...For me as you can see I installed Big Sur and it worked for me, however due to unforeseen circumstances I can't help with all install steps if it doesn't work out for you. I also can't support or guide you on the use of additional Apps you may install like for example Office (word, powerpoint, excel), Final Cut Pro, Photoshop etc... they may work - they may not. However do help others in the comments if you get Apps to work what other are struggling with.
Please make sure your Mac is Compatible here;
https://bensova.gitbook.io/big-sur/supported-macs
Using Patched Sur Patcher; I have successfully installed MacOS Big Sur 11 onto a 2012 MacBook Pro and you can to on your Intel Mac!
You will need a USB stick and a copy of MacOS Big Sur 2020 and the patcher.
The USB stick I have used and works with MacOS Big Sur is this one;
UK - https://amzn.to/2UKD7EW ​
You can download this from Patched Sur website;
https://github.com/BenSova/Patched-Sur
0:00 Intro
0:20 DO NOT SKIP - Unsupported Macs with Big Sur
2:51 Install Part 1 - USB Setup
11:20 Install Part 2 - Installation
15:20 Install Necessary Patches for your Mac