Creating a bootable macOS USB Drive
Nov 24, 2020
Prerequisites:
- Download macOS via
App Store
- Plug in a
16GB
(or bigger) USB Drive and erase it usingDisk Utility
For some time macOS comes with a USB creation tool built into the Installed
sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/USB --nointeractionErasing Disk: 0%... 10%... 20%...100%...
Copying installer files to disk...
Copy complete.
Making disk bootable...
Copying boot files...
Copy complete.
Done.
Boot mac with alt/option
key pressed and select new Installer to run the installation process.