Had the same issue in 18.04.1. From /var/log/dpkg.log this is what seems to be the relevant part:
2018-11-26 10:10:35 status half-configured grub-efi-amd64:amd64 2.02-2ubuntu8.9 2018-11-26 11:14:03 status installed grub-efi-amd64:amd64 2.02-2ubuntu8.9 I was doing something else when prompted about the conflict resolution, then (after about an hour, apparently) I clicked on "view diff" or similar, but nothing happened, the update just went forward. Difference from the OP is that I don't remember having changed my GRUB config, so it's also a question why I was prompted in the first place. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1248320 Title: selecting "show differences side by side" on GRUB update prompt does not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1248320/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
