![]() Sudo /Applications/Install\ macOS\ Ventura.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume Monterey Sudo /Applications/Install\ macOS\ Sonoma.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume Ventura If your Mac is using macOS Sierra or earlier, append -applicationpath to your command, followed by the appropriate installer path, similar to what is shown in the command below for El Capitan. Remember to replace MyVolume in the command with the name of your volume. You can now quit Terminal and eject the volume.ĭepending on which macOS you downloaded, enter one of the following commands in Terminal as instructed above. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Sonoma. Terminal shows the progress as the volume is erased.Īfter the volume is erased, you may see an alert that Terminal would like to access files on a removable volume. When prompted, type Y to confirm that you want to erase the volume, then press Return. Terminal doesn't show any characters as you type. When prompted, type your administrator password. If the volume has a different name, replace MyVolume in the command with the name of your volume. Each command assumes that the installer is in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. Type or paste one of the commands below into Terminal, then press Return to enter the command. Open Terminal, which is in the Utilities folder of your Applications folder. ![]() ![]() Enterprise administrators: download from Apple, not a locally hosted update server.ĭownload a macOS installer using the App Store or your browser Use Terminal to create the bootable installer Your Mac must also be compatible with the macOS that you're downloading. To download a full installer, your Mac must be using macOS High Sierra or later, the latest version of macOS Sierra, or the latest version of OS X El Capitan. What you need to create a bootable installerĪ USB flash drive or other secondary volume with at least 14GB of available storage, formatted as Mac OS Extended You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful if you want to install macOS on multiple computers without downloading the installer each time, or you're unable to install a compatible macOS from the Finder or macOS Recovery. Mac 911 can’t reply to-nor publish an answer to-every question, and we don’t provide direct troubleshooting advice.These advanced steps are primarily for system administrators and other experienced users who are familiar with entering commands in Terminal. If not, we’re always looking for new problems to solve! Email yours including screen captures as appropriate. Read our super FAQ to see if your question is covered. ![]() We’ve compiled a list of the questions we get asked most frequently along with answers and links to columns: The pre-10.12.4 option is simply Command-Option-R, but it acts like the new Shift-Command-Option-R, installing the shipped OS or the oldest compatible version.)Īpple recommends the Command-Option-R option as the only safe way to reinstall a Mac with El Capitan or earlier versions of macOS if you want to be sure your Apple ID doesn’t persist even after erasure. (Apple just changed this behavior with 10.12.4, but if you’re using Internet Recovery for a clean install on an erased drive, the new behavior should be active as it will be pulled from the version of Recovery that’s bootstrapped from Apple’s servers. (Apple doesn’t document that, and I haven’t had to test that for years.) In that mode, when you choose to reinstall without erasing the drive, my recollection is that Recovery looks for the current OS system installer on your startup disk in the Applications folder, and uses that. That allows you to run Disk Utility, reinstall or wipe and install the system, access Terminal for command-line functions, and so on. Normally, you can start up a Mac while holding down Command-R to boot into what Apple now calls macOS Recovery. The article includes instructions on obtaining the installer, which might involve you having to use someone’s else Mac to download it, if you don’t have a replacement Mac on hand yet.īut if you can’t get access to another Mac or the necessary drive, it’s still possible to use a different Recovery mode on all recent Macs, dating back to 2010. Making a bootable installer with macOS Sierra (as well as archived versions for several previous releases). Recovery lets you install onto an erased partition, but only if Recovery wasn’t erased, too!īecause Recovery didn’t work, the fastest way to install fresh is to make or borrow a macOS installer on a USB flash drive or a disk drive.
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