This can take a while to complete, so wait for the “Done” message before continuing. The target USB disk or flash drive will be erased first and then copy the files to it so that it will become a bootable OS X El Capitan installer. You’ll then see the following screen text in the Terminal: Hit the Return key and enter the administrator password when Important to have proper syntax: sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/ElCapInstaller -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app -nointeraction Single line, the text will wrap because it is long, but it’s Target volume name from ElCapInstaller to something else) onto a Launch the Terminal application, found in /Applications/Utilities/ and enter the following command exactly (unless you changed the Make the OS X El Capitan Bootable Installer Drive with a Terminal Command This InstallESD.dmg file is what you need to burn/run macOS installer from a DVD?USB.

pkg file > select 'Show Package Contents' That being said, this is how to locate and save the. pkg file itself by double-clicking and mounting the installer.

I think you are wanting to burn/run the installer from a disc/USB? (if not, you can run it from the. pkg file is basically a folder (if you will) that the installer 'app' is located in.