Wait and Let the Magic Happen: "Preparing Updates." (30 min. Note: If your Mac has the latest software installed, it will say, "Your Mac is up to date - macOS M"ģ. We will be notifying employees when macOS Monterey will be available to users.ĭepending on your internet connection speed, this can take 15-60 minutes. Note: Employees cannot update to macOS Monterey. Select "More Info" under the "Another update is available" button. Choose the Apple menu (top left of the screen) > "About This Mac" > and then select the " Software Update" button.Ģ. Part II Starting the Update Process (est. You should plan that it will take 45 min.Do not close the screen on your computer, shut down, or restart your computer.(By doing so, it will ensure your computer does not shut off in the middle of the update, which would be problematic.) Restart your computer (By doing so, it will ensure you have quit and saved all of your work.).Back up files on your computer to Google Drive. Be sure to locate your computer in a safe location, where you can keep it plugged in and it will not be turned off or closed during the 1-4 hour update cycle. You can update your computer from home or school. To ensure that everything goes smoothly, we'll take the extra step of deleting your existing partition before installing macOS.Part I Getting Ready: Before Your Start the Update. Once your installation files have been copied, it's time to install macOS from scratch. Once you hit Enter, you'll need to enter your admin password to approve the command, and then hit "Y" on your keyboard to confirm that you're OK with the contents of the USB drive being overwritten. Here's another example that creates a macOS High Sierra install USB on a drive named "MacOS Installer": sudo /Applications/ Install\ macOS\ High\ Sierra.app/ Contents/Resources/createinstallmedia -volume /Volumes/MacOS\ InstallerĬommand to list all connected volumes, which will include your USB installation medium in case you need to check the label. For example, "Install macOS High Sierra.app" would become Install\ macOS\ High\ Sierra.app Be aware that any spaces will need to be preceded by a backslash. You can change various parts of this command to suit your own circumstances, with the main one being the name of the installer. Sudo /Applications/ Install\ macOS\ Big\ Sur.app/ Contents/Resources/createinstallmedia -volume /Volumes/macos_installer You can find out which Mac you have by clicking on the Apple logo in the top-left corner and selecting "About This Mac" to see the name and year of release. If you're not sure what your Mac came with, head to Apple Support and search for your exact model. Your Mac's "earliest" supported version of macOS is the one that it came with. Older versions were written for Intel chips, which use the x86_64 instruction set, while the newer Apple Silicon chips use the ARM instruction set. It's common knowledge that new macOS releases often drop support for older hardware, but the same is true for newer Mac models and older software, too.įor example, you cannot install any version of macOS prior to Big Sur (released in 2020) on a Mac with an Apple Silicon chip, including the M1. It's important to understand that not all versions of macOS (or Mac OS X) work with all hardware configurations. While the process is pretty straightforward, getting your hands on older releases of macOS isn't so easy.
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