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By default, it is set to MacBook.Ĭlick on the Show All Disks button and you’ll see an icon for the different disks and partitions on the Mac. #INSTALL OS X FOR MAC INSTALL#Keep clicking past the license agreement, etc., until you get to the screen that asks you which disk to install OS X on. ![]() ![]() Once it has been downloaded, just double-click the installer, which will be located in the Applications folder. Note that if you already have that version of OS X installed, you’ll see a popup message appear asking if you still want to continue or not. #INSTALL OS X FOR MAC DOWNLOAD#Go ahead and click the Download button to start downloading the installer. Once you open the App Store, you’ll see a link on the right for the latest version of OS X (El Capitan as of this writing). The easiest way is to download OS X from the App Store. I’ll show you both methods in case one isn’t working for you. There are two ways you can install OS X on to your external hard disk: by reinstalling OS X from the OS X Utilities repair screen or by downloading OS X from the App Store and running the installer. It should only take a minute or two for the drive to be erased and reformatted. Follow the instructions when the macOS installer opens.Give your drive a name, choose OS X Extended (Journaled) for Format and GUID Partition Map for Scheme. 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. #INSTALL OS X FOR MAC MAC#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 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'. #INSTALL OS X FOR MAC PASSWORD#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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