I just encountered this bug today when upgrading from a fully updated 14.04 server to 16.04 using do-release-upgrade. My static IP configured in /etc/network/interfaces was configured to come up on eth0. Logging in on the console and replacing eth0 with ens32 in that interfaces file and rebooting fixed things.
I just encountered this bug today when upgrading from a fully updated 14.04 server to 16.04 using do-release-upgrade. My static IP configured in /etc/network/ interfaces was configured to come up on eth0. Logging in on the console and replacing eth0 with ens32 in that interfaces file and rebooting fixed things.