I'm still running Ubuntu 10.04 with quite a few PPAs. Amongst the PPAs there is Guiodic (Guido Iodice) Lucid quasi-rolling :) PPA which brings most recent versions of many programs to my desktop.

My steps:

  1. sudo update-manager -d
  2. click on upgrade on the appearing window
  3. wait for the magic to happen: prepare to upgrade and setting new software channels
  4. during 'calculating the changes' I will get the following error message in the panel

    An error occurred, please run Package Manager form the right-click menu or apt-get in a terminal to see what is wrong. The error message was: ' Error: Marking the upgrade (E:Error, pkgProblemResolver::Resolver generated breaks, this may be caused by help packages.)'This usually means that your installed packages have unmet dependencies

When I check Synaptic/apt-get I can't find any errors or hint toward broken packages


Could this error be because of many PPA versions being newer than 10.04 original versions?

  • Could you post the error message you get from running sudo apt-get dist-upgrade?
    – Isaiah
    Commented Feb 23, 2011 at 19:50
  • I'm sorry that I did not provide sufficient details in the first place. I hope that now the issue is more clear.
    – seb
    Commented Feb 23, 2011 at 20:44
  • drop the -d, just try update-manager Commented Feb 24, 2011 at 1:47
  • same error message without the -d
    – seb
    Commented Feb 24, 2011 at 13:41
  • It seems the direct answer to my question is NO. Should I ask another question regarding the error message?
    – seb
    Commented Feb 24, 2011 at 19:24

3 Answers 3


As hhlp pointed out the update-manager will comment out PPAs before it upgrades you to 10.10.

There are also command line instructions here which talk about do-release-upgrade, which is the supported method of upgrading via CLI:


you have Ubuntu already installed 10.04 and you want to update your version to version 10.10, then click Alt+F2 and run "update-manager", will open a new window.

Click the Update button and start the download and update packages, depending on the state of the network can take a few hours.

this process will comment all your PPA before updated.....

  • I'm sorry guys that I did not provide sufficient details in the first place, see above.
    – seb
    Commented Feb 23, 2011 at 20:46

It seems the direct answer to my question is NO. see above comments.

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