

To update your installation, you can use the Post-install tool. Then, select the boot drive you've created and reinstall macOS.

Once the USB drive is ready, go ahead and launch the Startup Manager by holding down Option ( ⌥) while restarting your Mac. Just plug in a large enough USB drive, and Patched Sur will create your installation media. The app downloads the Set Vars Tool, the Kext patches, and the macOS installer itself. You will need to select your update track, but the rest of the process is mostly automated. For the time being, you can only update from Catalina, as the clean install option is not available. Patched Sur is an intuitive app that runs you through a step-by-step process in order to create a bootable USB for installing or updating your OS. Thankfully, if you really want to run this OS on your older Mac, you still have options. Big Sur is the most innovative macOS release in recent years, so it's no surprise that Apple has dropped support for quite a few older Macs with the 11.0 update.
