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.
