Create Mac Os X Bootable Usb Installer From Dmg [ POPULAR | 2027 ]

(Feasible, but requires third-party tools to be user-friendly).

Keep a labeled USB drive for your most-used macOS version in your toolkit. It takes 20 minutes to make, but it can save you hours of frustration or a costly trip to the Genius Bar. create mac os x bootable usb installer from dmg

Ideally, Apple wants you to download macOS from the App Store as a .app file and use the built-in terminal command createinstallmedia . However, you often end up with a .dmg file if: Ideally, Apple wants you to download macOS from

: Use Disk Utility to erase your USB drive (at least 16GB) as Mac OS Extended (Journaled) with a GUID Partition Map . (The Terminal commands rely on this default location)

Drag the .app file to your folder. (The Terminal commands rely on this default location).

The createinstallmedia command is hidden deep inside the macOS installer app. Open ( /Applications/Utilities/Terminal.app ).