Very simple Ubuntu command line upgrade

While I would like to install some new component for our Ubuntu server (Gutsy) I found it's impossible to download packages any more, due to outdated system binary version. So here's the command to upgrade the whole system whilst I wish them to work properly ;)
It is better to run this command in the console, though I ran it in my screen session, who cares? It did notified me there's a 9004 port open for an emergency ssh connection.
Here's the command:

sudo do-release-upgrade

Then answer "Y" to any questions.
Simple, right?