This is a common dupe:

• How to install software or upgrade from an old unsupported release?

Closing it is the right thing to do. The answer in the master question adds old-releases.ubuntu.com, which contains the archive of all the old releases, so anyone on an old release has a way to move up to a supported release, so it's all good.

This is a common dupe:

• How to install software or upgrade from an old unsupported release?

Closing it is the right thing to do. The answer in the master question adds old-releases.ubuntu.com, which contains the archive of all the old releases, so anyone on an old release has a way to move up to a supported release, so it's all good.