sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/"target_USB" --applicationpath /Applications/Install\ macOS\ High\ Sierra.app --nointeraction
/Volumes/"Image Volume"/"install macOS High Sierra.app"/Contents/Resources/startosinstall --volume /Volumes/"HighSierra" --agreetolicense --converttoapfs NO