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Possible Duplicate:
Can I skip over releases?
Is it possible to skip releases during an upgrade?

I'm currently runing Ubuntu 9.04 Jaunty. I want to upgrade to 10.04.02, but whenever I use the Update manager to do this, it fails with the error "An upgrade from 'jaunty' to 'lucid' is not supported with this tool".

I also tried to run sudo do-release-upgrade -d, but it fails with the same error message:

  Checking for a new ubuntu release
  Done Upgrade tool signature
  Done Upgrade tool
  Done downloading            
  extracting 'lucid.tar.gz'
  authenticate 'lucid.tar.gz' against 'lucid.tar.gz.gpg'
  tar: Removing leading `/' from member names

  Reading cache

  Checking package manager

  Can not upgrade

  An upgrade from 'jaunty' to 'lucid' is not supported with this tool.

merged by fossfreedom Sep 13 '12 at 18:40

This question was merged with Can I skip over releases when upgrading? because it is an exact duplicate of that question.

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