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I have Kubuntu 12.04, and would like to upgrade, but Muon Software Updates tells me that "The software on this computer is up to date".

What can I make to make it see new version of the distribution?

In shell, do-release-upgrade, also says:

No new release found.
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3  
Try running it with root privileges... sudo do-release-upgrade -d –  M.Meintjes Apr 29 '13 at 14:35
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marked as duplicate by Radu Rădeanu, qbi, Eric Carvalho, karel, Kevin Bowen Oct 22 '13 at 14:55

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4 Answers

up vote 15 down vote accepted

If you run upgrade before, you should add -d. So run sudo do-release-upgrade -d

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-d seems to have fixed the problem. Thanks. –  user12008 Apr 29 '13 at 14:45
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The manpage says that -d is for upgrading to a devel release. This is something else then a normal upgrade and therefore doesn't sound like good advice to me. –  Nanne Apr 29 '13 at 14:46
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Nanne - perhaps. But it works. It is now upgrading my "Precise" to "Quantal". So I guess it will later on upgrade this to Raring. –  user12008 Apr 29 '13 at 14:48
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You need to edit /etc/update-manager/release-upgrades and change

[DEFAULT]
Prompt=lts

to

[DEFAULT]
Prompt=normal

Afterwards, do-release-upgrade shall find the non-LTS-upgrade and proceed normally.

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As noted in the accepted answer, adding -d will upgrade to the development branch. If you're only looking to upgrade to a stable release then this is the correct way to do it. –  darronz Nov 6 '13 at 6:50
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  • First you have to upgrade to 12.10 then you can upgrade to 13.04, then you could move to 13.10 (dev version)
  • If sudo do-release-upgrade is not working you could use the Debian method, but it is not recommended - it can break your install. I have used it twice for 12.10 to 13.04 with no issues, but your mileage may vary.

    1. Use this to upgrade from Precise to Quantal

      sudo sed -i "s/precise/quantal/" /etc/apt/sources.list
      sudo apt-get update
      sudo apt-get dist-upgrade`
      
    2. Then, use this to upgrade from Quantal to Raring

      sudo sed -i "s/quantal/raring/" /etc/apt/sources.list
      sudo apt-get update
      sudo apt-get dist-upgrade
      
    3. Then, use this to upgrade from Raring to Saucy

      sudo sed -i "s/raring/saucy/" /etc/apt/sources.list
      sudo apt-get update
      sudo apt-get dist-upgrade
      
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Well, I would, if I could - the problem was that I wasn't able to do any distribution upgrade. Luckily, now it looks that -d, as provided by Achu and MrSeed, did help. –  user12008 Apr 29 '13 at 14:46
5  
pay attention to the "it is not recommended" in there! –  Nanne Apr 29 '13 at 14:46
    
Nanne? I did not do the sed /// approach. So I'm not sure what you mean. –  user12008 Apr 29 '13 at 14:49
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There is a setting in Muon for checking all releases or only LTS releases. If you install an LTS, you will only upgrade to the next LTS by default. I changed this and then was able to upgrade 12.04 -> 12.10, then 12.10 -> 13.04. https://help.ubuntu.com/community/QuantalUpgrades/Kubuntu

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