A DMG file, like ISO, can be used to install macOS operating system or Mac apps. It is the Mac equivalent of an ISO file that has been in use since Apple transitioned from the IMG format with Mac OS X. That's because DMG is not native on Windows. To create a bootable USB drive from a DMG file on Windows, you will need to have the right utility. This guide provides 2 ways to boot a Mac from a USB flash drive.
For example, if you install macOS or Microsoft Windows on a USB drive, your Mac can recognize that drive as a startup disk. How to make a bootable USB drive for the new macOS Mojave, macOS High Sierra, or any of your favorite macOS operating system.This is a super easy way to crea.īy default, Mac starts from its built-in hard disk, but a startup disk can be any storage device that contains bootable contents that compatible with your Mac. Drag-and-drop the Mac OS X Install Drive disk into the Source box At the bottom right-hand corner of the screen and click the Restore button Disk Utility will restore the OS X Install DVD or disk image to the USB drive this process may take anywhere from 20 minutes to an hour depending on how quick the Mac is.
