Nov 16, 2020 How to Install Big Sur on Unsupported Mac Last week when Apple released the macOS Big Sur, some users reported that they weren’t able to download the latest operating system. But now, according to Apple, you can easily upgrade to the latest macOS Big Sur. Iit pave pavement design software free. UPDATE: Patched Sur GitHub is down Do you want to install macOS Big Sur on your 2012 or 2013 Mac? I will show you the easiest way to do it! This video is a.
I'm having an old MacBook Air 4.2, (mid 2011, SSD, 4 Gb memory), which have been running Catalina for quite some time despite that the max OS is High Sierra. I have been using the great work by dosedudes1 and his Catalina patcher.
Unfortunately he didn't continue with patches for newer OS:s, but have helped with a new patcher. This patcher even handles Macs with graphic cards from 2008 - 2011.
Using the patcher i got the mentioned Mac up and running with Big Sur after just over an hour.
Fantastic !!!
Patcher manual
The manual for the OpenCore Legacy Patcher is nice and there are also a video that will help you for the whole process.
Create bootable USB
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
After that follow these instructions,on how to install and use the OpenCore Legacy patcher.
Macos Big Sur Compatibility
Good luck !
Remarks
Macos Catalina
- Erase/format the MAC HD/SSD before installation !! I really think that this does it more simple for the installer !!
- With an old non SSD HD use 'Mac OS Extended(journaled)'
- 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 !!!
- In TUI '5. Miscellaneous Settings => 1. Set Showpicker Mode:' was set to 'False'