I don't see "-u" referenced on https://help.ubuntu.com/community/ReportingBugs
So I am closing this bug as invalid (for the apport source code) since it's was a documentation mismatch. ** Changed in: apport (Ubuntu) Status: New => Invalid -- 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/1740967 Title: -u for "existing bug report" is not in help output of "ubuntu-bug" Status in apport package in Ubuntu: Invalid Bug description: $ ubuntu-bug --help Usage: ubuntu-bug [options] [symptom|pid|package|program path|.apport/.crash file] Options: -h, --help show this help message and exit -w, --window Click a window as a target for filing a problem report. --hanging The provided pd is a hanging application. --save=PATH In bug filing mode, save the collected information into a file instead of reporting it. This file can then be reported later on from a different machine. --tag=TAG Add an extra tag to the report. Can be specified multiple times. -v, --version Print the Apport version number. $ ubuntu-bug --version 2.20.4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1740967/+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