query: I can't upgrade to the latest LTS
positive_passages.docid: 51768
positive_passages.text: Could not calculate the upgrade, what happened?
negative_passages.docid: 5820
negative_passages.text: How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
negative_passages.docid: 9901
negative_passages.text: How to upgrade from 18.10 to 19.10, using the command line?
negative_passages.docid: 30754
negative_passages.text: Cannot update: "No available releases found"
negative_passages.docid: 11166
negative_passages.text: "Require Installation Of Untrusted Packages" while upgrading with the update manager
negative_passages.docid: 119169
negative_passages.text: Should I upgrade to 14.04 LTS?
negative_passages.docid: 144172
negative_passages.text: How to upgrade to a point release from the same base release (12.04 to 12.04.03)
negative_passages.docid: 74990
negative_passages.text: Error while trying to upgrade from Ubuntu 18.04 to 18.10: "Please install all available updates for your release before upgrading."
negative_passages.docid: 129101
negative_passages.text: Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you
negative_passages.docid: 12614
negative_passages.text: Upgrade problem
negative_passages.docid: 110148
negative_passages.text: Why does `do-release-upgrade` skip a version?
negative_passages.docid: 118307
negative_passages.text: Why does upgrade from 12.04 to 12.10 using a CD/DVD still require download?
negative_passages.docid: 78587
negative_passages.text: How do I update core to 8.5?
negative_passages.docid: 95336
negative_passages.text: Installing particular versions when repo has newer versions?
negative_passages.docid: 114305
negative_passages.text: On really old Ubuntu 6.06 - How to upgrade
negative_passages.docid: 148872
negative_passages.text: I can't select updates in Update Manager
negative_passages.docid: 110203
negative_passages.text: When will the next LTS version of Ubuntu be released?