You may still be able to download macOS 10.12 Sierra for free from Apple.If you purchased macOS 10.12 Sierra you might be able to re-download the installer - go to Macintosh HD > Applications > App Store > Purchased tab at the top > login if necessary > check your purchase history list to download Mountain Lion.If you already have this installer archived/backed up you are good to go.Obtain the macOS 10.12 Sierra installer and copy it to your local Desktop/hard disk:.Obtain your preferred virtualisation software (see list above).Preparation NOTE: You will need a Mac and the macOS 10.12 Sierra installer. NOTE: This document was written using a Mac mini (2014 model) with macOS 10.14 Mojave running in 64-bit only test mode and using Parallels Desktop 14.1.2, VMWare Fusion 11.0.2 and VirtualBox 6.0.4. If you would like to transfer an existing Mac running Mac OS X 10.6 to a virtual machine, or take a Mac OS X 10.6 bootable storage device/clone/disk image and convert it into a virtual machine please see this article instead. This article deals with setting up/installing a virtual machine with Mac OS X 10.6 clean/from scratch. MacStrategy presents this special guide to virtualising Mac OS X / OS X / macOS. The ability to virtualise macOS 10.12 Sierra is important and very useful as it is an easy way to run 32-bit applications that do not run on macOS 10.15 or later. Instructions for installing, setting up and virtualising macOS 10.12 Sierra Virtualising macOS 10.12 Sierra Follow the instructions when the macOS installer opens.Virtualising macOS 10.12 Sierra Article ID = 168Īrticle Title = Virtualising macOS 10.12 Sierra Select the volume containing the bootable installer, then select ‘Continue’. Hold the power button until you see the startup options window. Make sure this machine is connected to the internet and supports the macOS version you’re installing. Click ‘Continue’ and follow the instructions.įirst, plug the bootable installer into the Mac you wish to install macOS. Select ‘Install macOS’ or ‘Install OS X’ from the Utilities window. Select the volume that contains the bootable installer. Release the ‘Option’ key when you see a dark screen showing your bootable volumes. Press and hold the ‘Option’ key after turning on or restarting the Mac. Plug the bootable installer into a Mac that’s connected to the internet and is compatible with the macOS version you’re installing. The steps are different, depending on whether you're using an Intel-based Mac or one with Apple silicon. It's now time to use the bootable installer to install a fresh copy of macOS. You've made it to the final step of learning how to install macOS from a USB. You've now successfully created a bootable installer that you can use to install macOS on other machines. If asked, click 'OK' to allow the copying of files to proceed. Type 'Y' to confirm that you want to erase the volume, then press 'Return'. Type your administrator password when prompted, then press 'Return' again. Continue with TerminalĪfter pasting the command above, hit the 'Return' key. Change the name in the command to match your settings, if necessary.įor macOS Big Sur, copy and paste the following into Terminal: sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolumeįor macOS Catalina: sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolumeįor macOS Mojave: sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolumeįor macOS High Sierra: sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolumeįor OS X El Capitan: sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app 3. With each command, it's assumed the installer is located in your 'Applications' folder and 'MyVolume' is the name of the USB flash drive. The command differs, depending on the macOS version you're going to install. In the next step, you'll enter a command in Terminal. Choose 'Finder' then select 'Go' from the menu bar. Connect the USB flash drive to the computer you wish to install macOS. Once you have your bootable installer ready, it's time to move to the next step.
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