Upgrading my Ubuntu Server 12.04

Server or desktop it makes no difference. We upgrade from LTS to LTS to LTS. Or to put it another way, 12.04 to 14.04 to 16.04. Ubuntu 14.04 has an even longer amount of support left than 12.04. So, you will still be able to upgrade to 14.04 after 16.04 has been released. In fact the only way anyone on 12.04 can move on to 16.04 is to first upgrade to 14.04. That is the process.

Of course, we can bypass this upgrade process by doing a fresh install of 16.04. And it is also true that life becomes more difficult if we delay upgrading until after our version has reached end of life. That is espeically true with interim versions.

Regards.