1/17/2024 0 Comments Upgrade macos catalina to big sur![]() Creating a bootable USB stick using the Big Sur patcher. Then you need to use the USB drive to install Big Sur on the unsupported Mac, and, lastly, you must install the needed patches. To install Big Sur on an unsupported Mac, you must first create a bootable USB drive using a special patcher app. How to install Big Sur on unsupported Mac ![]() With all that out of the way, here’s how you can use the Big Sur patcher to upgrade your unsupported Mac to the latest macOS. The last precaution before you start with the Big Sur installation is to download the current macOS that you have on your Mac/MacBook onto a USB stick so that, should there be a problem with the Big Sur installation, you can always install the older macOS onto the machine using the USB stick. Important NoteĪlso, it is important that you back up your important data – even if your Mac model and hardware composition are compatible with the patcher according to the notes, you should still make sure that any important data you don’t want to lose is safely backed up.Īnother thing to mention is that, if you are using FireVault, you need to have it turned off, or else the patcher will probably not work. The system requirements of Big Sur are higher than what most of the older models can effectively handle and so, unless you are certain that your Mac can run on Big Sur (check the notes in the link), it would probably be best if you kept its current macOS, that it can run stably. There is a reason why the latest macOS isn’t supported on older Mac models. Carefully look through those notes and if it turns out that your Mac doesn’t have the necessary prerequisites, it’s best if you don’t try the patcher as it will probably not work and may cause unnecessary complications that could be difficult to fix. On the linked page (from where you can download the patcher), you can find notes that show for which Mac models (and hardware compositions) the patcher is most likely to work and for which it’s not recommended to try it. If, however, you are determined to get Big Sur on your Mac, it may still be done in a roundabout way, by using a specially-developed patcher that you can download from here.ĭepending on how old your Mac is, the patcher may or may not enable you to install Big Sur – some Macs are just too old, and even the patcher cannot make it possible for the latest macOS to be installed on them. If you are using a Mac that’s too old and go to its Software Update section, you will see that you are simply not allowed to install the Big Sur upgrade. ![]() ![]() Big Sur WorkaroundĪt first glance, it may seem impossible to install macOS Bug Sur on a machine that’s not supported. However, if the machine’s not too old, there’s still a way to install Big Sur on an unsupported Mac using a specially developed patcher tool. Installing Big Sur on an unsupported Mac can’t be done the regular way through System Preferences > Software update. Creating a bootable USB stick using the Big Sur patcher.How to install Big Sur on unsupported Mac.Note: If the pre-requisite condition has not been fulfilled, running the softwareupdate –ignore command will have no effect. The advertisement banner should now be removed from the Software Update preference pane. You should see text appear which looks like this: Once that pre-requisite condition has been satisfied, run the following command with root privileges: You can block it from appearing using the softwareupdate –ignore command, but for macOS Catalina, Mojave and High Sierra, that command now requires one of the following enrollments as a pre-requisite:įor more information on this, please reference the following KBase article: (search for the following: Major new releases of macOS can be hidden when using the softwareupdate(8) command).įor more details, please see below the jump. Not yet ready for macOS Big Sur in your environment, but you’ve trained your folks to look at the Software Update preference pane to see if there’s available updates? One of the ways Apple is advertising the macOS Big Sur upgrade is via the Software Update preference pane:
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