upgrade to 13.04 from 12.10 without quantal repo I have recently been made a temporary owner of an old 12.10 Ubuntu machine so I can upgrade it to the latest(14.04). So I am trying to upgrade to the 13.04 as per ubuntu website, and from there to 14.04, but I seemed to have run into the apt-get bug:  root@camolls1000774583:/etc/apt# do-release-upgrade  Checking for a new Ubuntu release Your Ubuntu release is not supported anymore. For upgrade information, please visit: http://www.ubuntu.com/releaseendoflife  Traceback (most recent call last): File "/usr/bin/do-release-upgrade", line 145, in &lt;module&gt; fetcher.run_options += ["--mode=%s" % options.mode, AttributeError: type object 'DistUpgradeFetcherCore' has no attribute 'run_options'   I googled around, apparently the fix was pushed in a upgrade and was placed in quantal repo.   But when I tried to run apt-get update and apt-get upgrade all my quantal repos came back as 404 not found or ignored. I am guessing since Quantal is EOL they took away the repo.  So how do I upgrade to Raring without quantal repo?   I have also attached a copy of my sources.list in case that helps.  I can't nuke it. I need the user's data intact.   thanks  Edited for additional clarification.
How to install software or upgrade from an old unsupported release? Recently I have installed an older version of Ubuntu on my old machine. Whenever I try to install any software, I get an error saying it couldn't be found:  $ sudo apt-get install vlc Reading package lists... Done                Building dependency tree        Reading state information... Done     E: Couldn't find package vlc
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