Please attach your upgrade logs from /var/log/dist-upgrade to help us try to see what has happened on your system.
Both before and after the upgrade, /etc/resolv.conf should be a symlink to /run/resolvconf/resolv.conf. If something has replaced that with a file, we would need to figure out what that is. It probably wasn't resolvconf itself. ** Changed in: resolvconf (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1725840 Title: resolvconf not correctly configured after update from 17.04 to 17.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1725840/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs