can feel like a trip back in time. Whether you're reviving an old 2009 MacBook or setting up a virtual machine, getting the right file—and making it actually boot—is the biggest hurdle.
A working El Capitan bootable ISO should successfully perform the following tasks:
This is the official Apple tool located inside the app you downloaded:
Your final ISO file will now be on your Desktop.
: Apple provides older macOS versions through their official support page .
: sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/install_build --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app --nointeraction