bless

Set volume boot capability and startup disk options. More information: https://keith.github.io/xcode-man-pages/bless.8.html.

bless --folder /Volumes/Mac OS X/System/Library/CoreServices --bootinfo --bootefi

bless --mount /Volumes/Mac OS --setBoot

bless --netboot --server bsdp://255.255.255.255

bless --info --plist