Double-click the .dmg file to mount it. If it contains a .pkg file, run it; this typically installs a "Install macOS [Version Name]" application into your Applications folder.
: Obtain the macOS installer from the Mac App Store or Apple's support pages.
A DMG is just a container. Double-click it in Finder. Inside, you will likely find one crucial item: Install macOS [Version Name].app .
diskutil unmountDisk /dev/disk2
This method uses dd or asr (Apple Software Restore) to write the DMG directly to the USB drive.
Double-click the .dmg file to mount it. If it contains a .pkg file, run it; this typically installs a "Install macOS [Version Name]" application into your Applications folder.
: Obtain the macOS installer from the Mac App Store or Apple's support pages. create mac os x bootable usb installer from dmg
A DMG is just a container. Double-click it in Finder. Inside, you will likely find one crucial item: Install macOS [Version Name].app . Double-click the
diskutil unmountDisk /dev/disk2
This method uses dd or asr (Apple Software Restore) to write the DMG directly to the USB drive. create mac os x bootable usb installer from dmg