How to create a bootable installer for macOS
A disk image named InstallOS.dmg will download and once it does you need to locate the pkg installer inside the disk image. If it is already open make sure that you close the Mac App Store before clicking on any of these links or they won’t work.Īpple provides dmg files of these older macOS versions – you need to download them in Safari. Luckily it can still be done, and we explain This is because when High Sierra launched Apple stopped making older versions of the OS available to download via the Mac App Store. With macOS Catalina, Mojave or High Sierra installed it’s a little tricky to get the installation files for older versions of macOS. Just don’t click on install as you need the installation file for the next stage of this tutorial…
Now, if you click on Get, your Mac will offer to download the installers.Go to the Catalina page, you can click this.You will also be able to download the installer via Software Update if you haven’t yet installed it. MacOS Monterey, which became available to install on 25 October 2021, is available to download from the How to download old Mac OS X and macOS versions. Below we’ll look at how to get Monterey installers as well as how to get older versions of the macOS or even Mac OS X. It goes without saying that you will need an internet connection to download the software and you may need it while installing the version of macOS if it needs to check for firmware or confirm your iCloud credentials.Īs we said already, how you get the installation files will depend on the version of macOS you are running currently and the version you want the installer for. The Mac App Store is probably the easier option, but there can still be difficulties depending on which version of macOS your machine is running, and if you were hoping to grab older installation files that can be tricky – we have another article discussing
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