I tested an upgrade today from Ubuntu 16.04 to Ubuntu 18.04 using the dist-upgrader from -proposed but not using the clone attached in this bug report and the upgrade did complete successfully with libc6 being upgraded first.
Log started: 2018-08-09 09:56:06 (Reading database ... ^M(Reading database ... 5%^M(Reading database ... 10%^M(Reading database ... 15%^M(Reading database ... 20%^M(Reading database ... 25%^M(Reading database ... 30%^M(Reading database ... 35%^M(Reading database ... 40%^M(Reading database ... 45%^M(Reading database ... 50%^M(Reading database ... 55%^M(Reading database ... 60%^M(Reading database ... 65%^M(Reading database ... 70%^M(Reading database ... 75%^M(Reading database ... 80%^M(Reading database ... 85%^M(Reading database ... 90%^M(Reading database ... 95%^M(Reading database ... 100%^M(Reading database ... 278731 files and directories currently installed.)^M Preparing to unpack .../libc-dev-bin_2.27-3ubuntu1_amd64.deb ...^M Unpacking libc-dev-bin (2.27-3ubuntu1) over (2.23-0ubuntu10) ...^M Preparing to unpack .../libc6-dev_2.27-3ubuntu1_amd64.deb ...^M Unpacking libc6-dev:amd64 (2.27-3ubuntu1) over (2.23-0ubuntu10) ...^M Preparing to unpack .../libc6-dbg_2.27-3ubuntu1_amd64.deb ...^M Unpacking libc6-dbg:amd64 (2.27-3ubuntu1) over (2.23-0ubuntu10) ...^M Preparing to unpack .../locales_2.27-3ubuntu1_all.deb ...^M Unpacking locales (2.27-3ubuntu1) over (2.23-0ubuntu10) ...^M Preparing to unpack .../libc6_2.27-3ubuntu1_amd64.deb ...^M Checking for services that may need to be restarted...^M Checking init scripts...^M Nothing to restart.^M Unpacking libc6:amd64 (2.27-3ubuntu1) over (2.23-0ubuntu10) ...^M Setting up libc6:amd64 (2.27-3ubuntu1) ...^M Installing new version of config file /etc/ld.so.conf.d/x86_64-linux-gnu.conf ...^M Checking for services that may need to be restarted...^M Checking init scripts...^M Nothing to restart.^M Processing triggers for man-db (2.7.5-1) ...^M (Reading database ... ^M(Reading database ... 5%^M(Reading database ... 10%^M(Reading database ... 15%^M(Reading database ... 20%^M(Reading database ... 25%^M(Reading database ... 30%^M(Reading database ... 35%^M(Reading database ... 40%^M(Reading database ... 45%^M(Reading database ... 50%^M(Reading database ... 55%^M(Reading database ... 60%^M(Reading database ... 65%^M(Reading database ... 70%^M(Reading database ... 75%^M(Reading database ... 80%^M(Reading database ... 85%^M(Reading database ... 90%^M(Reading database ... 95%^M(Reading database ... 100%^M(Reading database ... 278807 files and directories currently installed.)^M Preparing to unpack .../libc-bin_2.27-3ubuntu1_amd64.deb ...^M Unpacking libc-bin (2.27-3ubuntu1) over (2.23-0ubuntu10) ...^M Processing triggers for man-db (2.7.5-1) ...^M Setting up libc-bin (2.27-3ubuntu1) ...^M Setting up libc-dev-bin (2.27-3ubuntu1) ...^M Setting up libc6-dev:amd64 (2.27-3ubuntu1) ...^M Setting up libc6-dbg:amd64 (2.27-3ubuntu1) ...^M Setting up locales (2.27-3ubuntu1) ...^M Installing new version of config file /etc/locale.alias ...^M Generating locales (this might take a while)...^M ... Generation complete.^M Log ended: 2018-08-09 09:56:24 Log started: 2018-08-09 09:57:01 (Reading database ... ^M(Reading database ... 5%^M(Reading database ... 10%^M(Reading database ... 15%^M(Reading database ... 20%^M(Reading database ... 25%^M(Reading database ... 30%^M(Reading database ... 35%^M(Reading database ... 40%^M(Reading database ... 45%^M(Reading database ... 50%^M(Reading database ... 55%^M(Reading database ... 60%^M(Reading database ... 65%^M(Reading database ... 70%^M(Reading database ... 75%^M(Reading database ... 80%^M(Reading database ... 85%^M(Reading database ... 90%^M(Reading database ... 95%^M(Reading database ... 100%^M(Reading database ... 278807 files and directories currently installed.)^M Preparing to unpack .../base-files_10.1ubuntu2.1_amd64.deb ...^M Unpacking base-files (10.1ubuntu2.1) over (9.4ubuntu4.7) ...^M Processing triggers for plymouth-theme-ubuntu-text (0.9.2-3ubuntu13.5) ...^M ... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1766890 Title: package gnome-menus 3.13.3-6ubuntu3.1 failed to install/upgrade: triggers looping, abandoned To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1766890/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs