


Big Sur: sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia –volume /Volumes/MyUSB.Monterey: sudo /Applications/Install\ macOS\ Monterey.app/Contents/Resources/createinstallmedia –volume /Volumes/MyUSB.Ventura: sudo /Applications/Install\ macOS\ Ventura.app/Contents/Resources/createinstallmedia –volume /Volumes/MyUSB.Depending on the macOS version, execute the appropriate command below, replacing MyUSB at the end with the name of the USB drive.Open the Launchpad and select Other > Terminal.The procedure erases all existing data on the drive, so make sure you copy anything important elsewhere. Here are the specific instructions you need to follow.Ī bootable macOS USB stick requires at least 16GB of free storage.

You must create a bootable USB flash drive to install an older version of the system software on the Mac. Your Mac should immediately begin installing macOS on the APFS volume.
