query: Upgrade from 14.04 to 16.04 not working
positive_passages.docid: 4853
positive_passages.text: Trouble downloading packages list due to a "Hash sum mismatch" error
negative_passages.docid: 98844
negative_passages.text: upgrade 14.04 with errors and shows red sign on top
negative_passages.docid: 11166
negative_passages.text: "Require Installation Of Untrusted Packages" while upgrading with the update manager
negative_passages.docid: 65808
negative_passages.text: 17.10 to 18.04 upgrade freezes during boot
negative_passages.docid: 15687
negative_passages.text: How do I resume a release upgrade?
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: 13970
negative_passages.text: Why am I not getting the Ubuntu 18.04 upgrade?
negative_passages.docid: 149279
negative_passages.text: Why can not upgrade texlive2016 to texlive2017 on windows
negative_passages.docid: 56150
negative_passages.text: Can't upgrade/update ubuntu 18.04 as apt/dpkg error is showing up
negative_passages.docid: 12614
negative_passages.text: Upgrade problem
negative_passages.docid: 149984
negative_passages.text: Can't update or install anything. Ubuntu 3.11.0.14
negative_passages.docid: 65099
negative_passages.text: Unable to install any updates through update manager/apt-get upgrade
negative_passages.docid: 98511
negative_passages.text: 16.04 Cannot install anything from Ubuntu Software center
negative_passages.docid: 75621
negative_passages.text: Store won't open after upgrade
negative_passages.docid: 86777
negative_passages.text: Distribution upgrade problem "No new release found"
negative_passages.docid: 7580
negative_passages.text: How to safely upgrade from an older Ubuntu version to a newer one?
negative_passages.docid: 115421
negative_passages.text: Ubuntu 13.10 to 14.04 Lts does not upgrade, keeps showing error