/etc/resolv.conf contains only 127.0.0.1, as introduced by NetworkManager. /run/resolvconf/interface contains only NetworkManager, which has 127.0.0.1 with possibly a search and/or domain entry. /etc/resolvconf/resolv.conf.d is irrelevant in this particular case and files wheren't changed. original however contains what it *probably* the information introduced by ifupdown; but that's incidental. /etc/resolvconf/interface-order: unchanged; contains lo interfaces, then tun, tap, hso, em, p, and eth, ath, then wlan and ppp.
This is straight-out a bug in the patch that assumes *UP* for unmanaged interfaces. Maybe that patch ought to be dropped by now, but it at the very least needs to be updated to take into account changes to how DNS updates are being done now; it's probably a simple matter of checking whether the NMDevice is unmanaged at the point at which DNS is about to be changed; but there might still be the issue of reverting to the original data. Totally reproduceable on my system --> Triaged, because the next steps are pretty obvious. ** Changed in: resolvconf (Ubuntu) Status: Incomplete => Triaged ** Changed in: resolvconf (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1023486 Title: Cannot resolve domain names if eth0 is in /etc/network/interfaces To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1023486/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs