screen -dm -S up bash -c "do-release-upgrade -d -m server ; sleep 99999"
Bonus Command:
screen -p 0 -S test -X stuff 'echo "test" \n'
~
screen -dm -S up bash -c "do-release-upgrade -d -m server ; sleep 99999"
Bonus Command:
screen -p 0 -S test -X stuff 'echo "test" \n'
~