macOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. And get even more transparency around your privacy.
MacOS Big Sur on unsupported Mac 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. To install macOS Big Sur on an unsupported Mac we must do it on a disk partition and from macOS Catalina. This way if something goes wrong, we can always continue using our Mac as if nothing else. To make a partition follow these steps: Click on the magnifying glass and look for the app Disk utility. Up click on Create partition. 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 etcFor 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. This is for those who have successfully installed Big Sur on their unsupported Mac and do not have native internal Wi-Fi support. You can use any one of the supported USB Wi-Fi adapters to connect to Wi-Fi. This also works for Hackintosh builds as well. Starting macOS Big Sur with the older version of the Mac Operating system was a bit different, but with new macOS Big Sur still, it’s easy to set it up. Open the VirtualBox app then click the Start button.
Check compatibility
macOS Big Sur is compatible with the following computers. If your Mac isn't compatible, you might be able to install an old version of macOS instead.
MacBook introduced in 2015 or later
MacBook Air introduced in 2013 or later
MacBook Pro introduced in late 2013 or later
Mac mini introduced in 2014 or later
iMac introduced in 2014 or later
iMac Pro
Mac Pro introduced in 2013 or later
View the complete list of compatible computers.
If upgrading from macOS Sierra or later, your Mac needs 35.5GB of available storage to upgrade. If upgrading from an earlier release, your Mac needs up to 44.5GB of available storage. To upgrade from OS X Mountain Lion, first upgrade to OS X El Capitan, then upgrade to macOS Big Sur.
Download macOS Big Sur
Macos 11 Big Sur Unsupported Mac
If you're using macOS Mojave or later, get macOS Big Sur via Software Update: Choose Apple menu > System Preferences, then click Software Update.
Macos Big Sur Patcher
Or use this link to open the macOS Big Sur page on the App Store: Get macOS Big Sur. Then click the Get button or iCloud download icon.
Install macOS Big Sur
After downloading, the installer opens automatically. Click Continue and follow the onscreen instructions.
Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, it might restart and show a progress bar or blank screen several times. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
Stay up to date
After installing macOS Big Sur, you will be notified when updates to macOS Big Sur are available. To check for updates, choose Apple menu > System Preferences, then click Software Update.