This happened to me when upgrading from Groovy to Hirsute just now, with the same symptoms as above - I had `search .` in resolv.conf, but nothing creating that entry in /etc/netplan or in /etc/systemd/resolved.conf.
I fixed the broken package by fixing the erroneous entry /etc/postfix/main.cf (removing the ".." at the end of the hostname) and then running: sudo dpkg-reconfigure --force postfix sudo systemctl reload postfix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1906970 Title: dpkg hook hostname error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1906970/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
