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#Install new mac os from usb how to
#Install new mac os from usb install
#Install new mac os from usb update
#Install new mac os from usb full

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.

#Install new mac os from usb install

Connect the USB flash drive to the computer you wish to install macOS. Also, head over to the Mac App Store and re-install all the apps you want.Once you have your bootable installer ready, it's time to move to the next step. Once you’ve successfully installed the new software, you can transfer all your data back from the cloud or external storage drive to the Mac.

Once the drive has been erased, select Install macOS and then Continue. Just follow the on-screen prompts to clean install macOS Catalina.

Also ensure that the format is set as APFS or Mac OS Extended

Check to make sure you’ve selected the main drive of your Mac.

After a while, you’ll see the macOS Utilities menu on the screen.

If your Mac has the T2 security chip, you have to first enable booting via external drives from macOS Recovery

It will take you to the boot menu where you can select the USB drive.

Now turn the Mac back on while holding the Option key.

Turn off the Mac and then insert the bootable USB drive.

Download the macOS Catalina installation file using this link.

Make sure the USB drive is at least 8GB in size, and nothing else is stored on it

You have to create a bootable USB drive.

Save it to the cloud or an external drive

#Install new mac os from usb full

Take a full backup of all your important data.

#Install new mac os from usb how to

Here’s how to clean install macOS Catalina from USB drive: Steps to install You might want to clean install macOS Catalina to give your Mac a fresh start without any issues from the previous installation. Alternatively, you can download it directly from the Mac App Store.īut sometimes upgrading macOS from the previous version to the latest one is not the best way. Tap on the Apple icon in the top-left corner of the screen, then go to System Preferences > Software Update to download it. Upgrading to macOS 10.15 Catalina is pretty simple.

#Install new mac os from usb update

How to clean install the new software update Here’s the list of Mac devices compatible with the new software update: Is your Mac compatible with macOS Catalina? It has also replaced iTunes with three independent apps – Apple Music, Apple Podcasts, and Apple TV. The macOS Catalina brings tons of new features such as the Apple Arcade, Screen Time, Voice Control, Sidecar, and Find My app. You can download and install macOS Catalina if you have a compatible Mac. After months of beta testing, Apple has rolled out macOS 10.15 Catalina to public users.