Upgrade an Unsupported Ubuntu Linux to the latest version

If you like me stumble upon a machine running a version of Ubuntu that has become depreciated (End of Life), then fear not!

Fixing your broken sources.list

 

The first way I’ve noticed that something was wrong, was when I ran “apt-get update” and got a bunch of “404”‘s from our update server. But after some searching on the web I found that you can just replace the “archive.ubuntu.com” to “old-releases.ubuntu.com” in your /etc/apt/sources.list and use Ubuntu:s archive server to update your machine to the “latest and greatest” for your release.

sudo sed -i -re 's/([a-z]{2}\.)?archive.ubuntu.com|security.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list
sudo apt-get update && sudo apt-get dist-upgrade

You should now have a system that is as much up to date as possible, please consider doing a release upgrade now so you can continue to receive updates and security patches!

To upgrade to a new release:

Once you have performed the above steps to switch to the old-releases mirrors, update the Update Manager and then do do-release-upgrade:

sudo apt-get update
sudo apt-get install update-manager-core
sudo do-release-upgrade

Source: http://askubuntu.com/questions/91815/how-to-install-software-or-upgrade-from-an-old-unsupported-release

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