Sunday, January 3, 2016

apt-get claims 16.04 LTS does not exist

I am currently using Ubuntu 15.04 and wish to upgrade to 16.04 LTS. I try:


sudo do-release-upgrade

But I get:


Checking for a new Ubuntu release
No new release found

How do I move forward? Is my install simply reporting the wrong version number - how can I find out?


I mean, it looks like I am still on 15.04


lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 15.04
Release: 15.04
Codename: vivid

What next steps can I take?


UPDATE


I followed the directions in How to install software or upgrade from an old unsupported release? which caused a lot of 404 errors. I then realised that vivid was not in http://old-releases.ubuntu.com and search replaced those urls back to http://gb.archive.ubuntu.com/ and, bingo, updates working as they should.


TL;DR: The sources list was clearly wrong. Fixed it.

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