Ubuntu – I don’t know how to upgrade 12.10 to 13.04 or 13.10


I try to use upgrade app to upgrade, but the app tell me I can upgrade 13.10 directly.
But, if I press upgrade button, then the error message occured like…

An upgrade from 'quantal' to 'saucy' is not supported with this tool.

So, I try to upgrade with terminal by

    sudo do-release-upgrade

but, same error message occured.
I using 12.10 now. I want to upgrade to 13.10, but I can't upgrade 13.10, and 13.04.

I installed ubuntu 12.04 with Windows Installer, and I upgraded this to 12.10.

Best Answer

First check which versions of update-manager-core are installed:

apt-cache policy update-manager-core

The result may be similar to this...

  Installed: 1:0.174.5
  Candidate: 1:0.174.5
  Version table:
 *** 1:0.174.5 0
        500 http://de.archive.ubuntu.com/ubuntu/ quantal-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     1:0.174.4 0
        500 http://de.archive.ubuntu.com/ubuntu/ quantal-updates/main amd64 Packages
     1:0.174.3 0
        500 http://de.archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages

... which means, that you have installed the package from quantal-proposed

By downgrading to the package from quantal-updates you should be able to upgrade to raring:

apt-get install update-manager-core=1:0.174.4 python3-update-manager=1:0.174.4
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