Two years ago I installed Ubuntu 11.04 on my server when I was first setting it up.
I just noticed that 11.04 is no longer supported (hasn't been since October), so I want to upgrade my server to an LTS release, 12.04. Only problem is, it's a production server, and I'm scared in case I screw up my configuration.
Can I just run "sudo do-release-upgrade", or are there any precautions I need to take first? Also, since 13.04 is the current version, will it upgrade to that, if so, how do I avoid that?