4

I just upgraded an RPi configured as a wireless router to from 15.10 to 16.04. dnsmasq is failing during startup with an unknown interface br0. Before the upgrade, the log showed a wait for auto interfaces to complete, which is missing in the new boot log. When startup is complete, I can log in and manually start dnsmasq, which runs without problem.

br0 is the only interface declared as auto in /etc/network/interfaces.

5

I found the solution myself. Add the follow two lines in the [Unit] section of /lib/systemd/system/dnsmasq.service

After=network-online.target
Wants=network-online.target

See https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1531184 for more detail.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.