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Is there a special method to upgrade from 12.04 to 14.04?

When I try to upgrade from 12.04 using update-manager -d I receive the following error message:

fetching upgrade failed. 
There may be a problem with the server.

Am I missing any steps?
Does anybody have a solution for this?

Followed guidance on ubuntu website for upgrading to 14.04. I read it to say that each release after 12.04 had to be installed subsequent to installing next release to finally get 14.04 installed. Did not understand that un-supported releases are moved to a different server and are essentially unusable, hence the error message that I received.

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  • Try the command update-manager -d
    – Tim
    Jul 30, 2014 at 11:37
  • Are you trying to upgrade to 14.04, or just upgrade in general? I would also like to say that while the help pages for ubuntu are confusing sometimes, they do work, it can just be hard to get it to :). Keep trying with ubuntu, as you learn more and more you will find it gets better and better!
    – Tim
    Jul 30, 2014 at 11:38
  • A quick google search for "how to upgrade 12.04 to 14.04" gives this as the first result. omgubuntu.co.uk/2014/04/upgrade-ubuntu-14-04-12-04
    – amanthethy
    Aug 5, 2014 at 3:08
  • A second search on your error message gives this solution: askubuntu.com/questions/501746/…
    – amanthethy
    Aug 5, 2014 at 3:11
  • @amanthethy, Was trying to upgrade to 14.04 from 12.04. Was lead to believe from the ubuntu tutorials on ubuntu site that I had to progressively upgrade to each release version to get to 14.04. After reviewing the google search results that you pasted I'll give it a try. Many, many thanx for your assistance. I really do appreciate it.
    – user310282
    Aug 5, 2014 at 3:30

1 Answer 1

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This is a summary of what I've found. We've no idea what you've tried so far as troubleshooting so don't get upset if this is something you've already attempted.

  1. Visit HERE and generate the appropriate sources list. For your case, Your Country and Ubuntu 14.04 (the version you're trying to upgrade to)
  2. Open a terminal and type sudo gedit /etc/apt/sources.list. Replace the contents with your newly generated sources list.
  3. Run sudo apt-get update && sudo apt-get upgrade -y && update-manager -d
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