My investigation has shown that upgrading libc6 first produces a vastly different installation ordering. Also, turning off immediate configuration of essential packages in apt makes it work; but triggers bug 1771791 in systemd much more easily than now.
I think it might make sense to set Immediate-Configure to 0 for upgrades. There's a higher chance stuff gets messed up (because now most configuration is done at the end, even of essential packages); but essential packages are supposed to work unconfigured; so it "should" be fine... -- 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