do−release−upgrade − manual page for do−release−upgrade
Upgrade the operating system to the latest release from the command−line. This is the preferred command if the machine has no graphic environment or if the machine is to be upgraded over a remote connection.
show help message and exit
Check if upgrading to the latest devel release is possible
Try upgrading to the latest release using the upgrader from Ubuntu−proposed
−m MODE, −−mode=MODE
Run in a special upgrade mode. Currently "desktop" for regular upgrades of a desktop system and "server" for server systems are supported.
−f FRONTEND, −−frontend=FRONTEND
Run the specified frontend
Test upgrade with a sandbox aufs overlay