6/11/2023 0 Comments Install disk creator mac mojaveUpdated November 2020: Updated for macOS Big. You'll be happy you did! Questions?ĭo you have any questions about how to create a bootable drive for the macOS Big Sur installer? Let us know in the comments. If you're in the market for a new computer, be sure to check out our list of the current Macs. Follow the installation process when prompted.Select the external drive with macOS Big Sur on it from the systems' list to start up your computer. Hold down the Option key when it starts up.Connect the external drive to your Mac via the USB port.Turn off the Mac you want to install macOS Big Sur with the bootable installer drive.If you're upgrading to macOS Big Sur, follow the steps below. If you're downgrading from macOS Big Sur, please check out this guide instead. Turn on the Mac and continue to hold the power button until you see the startup options window, which displays your bootable volumes. You can use this installer to upgrade your operating system easily on multiple Macs or to help downgrade if you decide you want to go back to an earlier version of macOS. Once macOS Big Sur is installed on your external drive, you can install it on any Mac with the drive plugged into it. How to install macOS Big Sur with a bootable installer drive When it is done, the Terminal window will report "Done." Your external hard drive will now be named "Install macOS Big Sur." Safely eject the drive from your Mac. The process could take a very long time, depending on the drive. No text will appear in Terminal when you enter the password. This is the password you use to make changes on your Mac or log in.
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