apport checks for a bug pattern before filing a bug report, in the case of the bug which you were reporting it matched the bug pattern for bug 996916. That pattern looks like:
<pattern url="https://launchpad.net/bugs/996916"> <re key="Package">^(ubuntu-release-upgrader-core |update-manager)</re> <re key="VarLogDistupgradeMainlog">blacklist expr '\^postgresql-.*\[0-9\]\\.\[0-9\].*' matches</re> </pattern> >From the bugs I'd seen before most of them failed to calculate the upgrade, however in your log file (Mainlog.txt) the message appears during the obsolete package check. 2016-09-18 12:53:10,503 DEBUG Start checking for obsolete pkgs 2016-09-18 12:53:18,126 DEBUG blacklist expr 'update-manager-core' matches 'update-manager-core' 2016-09-18 12:53:18,127 DEBUG skipping 'update-manager-core' (in removalBlacklist) 2016-09-18 12:53:18,127 DEBUG 'update-manager-core' scheduled for remove but not safe to remove, skipping 2016-09-18 12:53:23,737 DEBUG blacklist expr 'update-manager-core' matches 'update-manager-core' 2016-09-18 12:53:23,737 DEBUG package 'python3-distupgrade' has unwanted removals, skipping 2016-09-18 12:53:25,652 DEBUG 'python3-distupgrade' scheduled for remove but not safe to remove, skipping 2016-09-18 12:53:25,980 DEBUG blacklist expr '^postgresql-.*[0-9]\.[0-9].*' matches 'postgresql-9.3' 2016-09-18 12:53:25,980 DEBUG skipping 'postgresql-9.3' (in removalBlacklist) 2016-09-18 12:53:25,980 DEBUG 'postgresql-9.3' scheduled for remove but not safe to remove, skipping The bug pattern should be modified so that it only matches bugs where the message appears before upgrading. ** Changed in: apport (Ubuntu) Status: New => Triaged ** Changed in: apport (Ubuntu) Importance: Undecided => High ** Package changed: apport (Ubuntu) => apport ** Summary changed: - ubuntu-bug refuses to file upgrade bug, thinks it's a dupe from 2012 + bug pattern for bug 996916 not specific enough -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apport in Ubuntu. https://bugs.launchpad.net/bugs/1624836 Title: bug pattern for bug 996916 not specific enough Status in Apport: Triaged Bug description: I wanted to file https://bugs.launchpad.net/ubuntu/+source/ubuntu-release- upgrader/+bug/1624835https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1624835 so I ran ubuntu-bug and selected 'ubuntu-release-upgrader'. I expected the usual workflow: a magic Launchpad link that makes me wait and wait and then eventually lets me file a new bug, which has a bunch of relevant information attached to it. ubuntu-bug decided instead that my problem was already known, and that I should add additional information to this unrelated old bug from 2012 https://bugs.launchpad.net/ubuntu/+source/update- manager/+bug/996916 ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: apport 2.20.1-0ubuntu2.1 Uname: Linux 2.6.32-042stab116.2 x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 Date: Sun Sep 18 13:10:10 2016 JournalErrors: Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system. Users in the 'systemd-journal' group can see all messages. Pass -q to turn off this notice. No journal files were opened due to insufficient permissions. PackageArchitecture: all SourcePackage: apport UpgradeStatus: Upgraded to xenial on 2016-09-18 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/apport/+bug/1624836/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp