I crated a bootable mac sierra to usb and not detect at startup disk!
i created a bootable macOS sierra to usb drive 16GB with Terminal method :
" sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/sierra --applicationpath /Applications/Install\ macOS\ Sierra.app --nointeraction "
and this method not detected on startup disk for chose it..
i know i can booted it from ALT(Option) at startup but i have problem on my MacBook i cant do it...
the only method i can be reset my OS is from Startup Disk..
Disk Maker work great it Detected on Startup Disk but is to slow for copy if have a another solution from Terminal or another apps to do bootable please
Is this a good question?