Select the desired volume, then follow the on-screen instructions.
On Apple Silicon Macs, hold down the Power button instead.Įither way, a list of bootable volumes will appear.On Intel Macs, hold down the Option key at startup.Continue with the instructions in the “Use Bootable macOS Installer” section below.If this happens to you, follow the instructions in this MacWorld article.
#Dont have administrator password for mac os x tiger update#
Some macOS Big Sur users need to update the drive before the drive can be used as a bootable drive.Once the process is complete, exit Terminal, then eject and remove the flash drive.If you see an alert that Terminal would like to access files on a removable volume, click OK to allow the copy to proceed.Press Y, then Return again to confirm you want to erase this flash drive (it will erase the entire drive).Note that Terminal will not display the password while you are entering it. Enter your administrator password and press Return again to run the installer.Sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia –volume /Volumes/MyVolume You can edit this command with the actual name of the flash drive or with a different path to the macOS installer if need be. This command assumes the macOS installer is located in the Applications folder and the flash drive is named MyVolume. Enter the following command in Terminal.Open Terminal, which is found in the Utilities folder in the Applications folder.Download the macOS installer from the Mac App Store.
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