[ubuntu] Upgrade errors

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http://ubuntuforums.org – whenever I try to upgrade from 10.04 to 12.10 i get the following error do-release-upgrade Quote: Checking for a new ubuntu release ERROR: failed to read '/etc/update-manager/release-upgrades': File contains no section headers. file: /etc/update-manager/release-upgrades, line: 1 ' Default behavior for the release upgrader.\n' is there a way to fix this? (Hardware)