[Bug 1603515] Re: No network connection after upgrade of 16.04 arm image

[Martin Pitt]

This sounds like some misconfiguration in that image -- apparently
/etc/network/interfaces (or interfaces.d/*) refers to "eth0" which does
not exist?

** Package changed: systemd (Ubuntu) => ubuntu

** Changed in: ubuntu
       Status: New => Incomplete

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Title:
  No network connection after upgrade of 16.04 arm image

Status in Ubuntu:
  Incomplete

Bug description:
  Flashed the 16.04 server image on RPI http://cdimage.ubuntu.com/ubuntu/releases/16.04/release/ubuntu-16.04-preinstalled-server-armhf+raspi2.img.xz. Performed apt update && apt upgrade
  After reboot I can see the following in logs. I tried flashing again and upgrading and got the same result. Please tell me if you need any additional information.

  Jul 15 17:41:22 ubuntu cloud-init[634]: Cloud-init v. 0.7.7 running 'init-local' at Fri, 15 Jul 2016 17:41:20 +0000. Up 19.53 seconds.
  Jul 15 17:41:23 ubuntu systemd[1]: Started Initial cloud-init job (pre-networking).
  Jul 15 17:41:23 ubuntu systemd[1]: Reached target Network (Pre).
  Jul 15 17:41:23 ubuntu systemd[1]: Starting Raise network interfaces...
  Jul 15 17:41:26 ubuntu dhclient[892]: Internet Systems Consortium DHCP Client 4.3.3
  Jul 15 17:41:26 ubuntu ifup[826]: Internet Systems Consortium DHCP Client 4.3.3
  Jul 15 17:41:26 ubuntu ifup[826]: Copyright 2004-2015 Internet Systems Consortium.
  Jul 15 17:41:26 ubuntu ifup[826]: All rights reserved.
  Jul 15 17:41:26 ubuntu ifup[826]: For info, please visit https://www.isc.org/software/dhcp/
  Jul 15 17:41:26 ubuntu dhclient[892]: Copyright 2004-2015 Internet Systems Consortium.
  Jul 15 17:41:26 ubuntu dhclient[892]: All rights reserved.
  Jul 15 17:41:26 ubuntu dhclient[892]: For info, please visit https://www.isc.org/software/dhcp/
  Jul 15 17:41:26 ubuntu dhclient[892]: 
  Jul 15 17:41:26 ubuntu ifup[826]: Cannot find device "eth0"
  Jul 15 17:41:26 ubuntu dhclient[892]: Error getting hardware address for "eth0": No such device
  Jul 15 17:41:26 ubuntu dhclient[892]: 
  Jul 15 17:41:26 ubuntu ifup[826]: Error getting hardware address for "eth0": No such device
  Jul 15 17:41:26 ubuntu ifup[826]: If you think you have received this message due to a bug rather
  Jul 15 17:41:26 ubuntu ifup[826]: than a configuration issue please read the section on submitting
  Jul 15 17:41:26 ubuntu ifup[826]: bugs on either our web page at www.isc.org or in the README file
  Jul 15 17:41:26 ubuntu ifup[826]: before submitting a bug.  These pages explain the proper
  Jul 15 17:41:26 ubuntu ifup[826]: process and the information we find helpful for debugging..
  Jul 15 17:41:26 ubuntu ifup[826]: exiting.
  Jul 15 17:41:26 ubuntu dhclient[892]: If you think you have received this message due to a bug rather
  Jul 15 17:41:26 ubuntu ifup[826]: Failed to bring up eth0.
  Jul 15 17:41:26 ubuntu dhclient[892]: than a configuration issue please read the section on submitting
  Jul 15 17:41:26 ubuntu dhclient[892]: bugs on either our web page at www.isc.org or in the README file
  Jul 15 17:41:26 ubuntu dhclient[892]: before submitting a bug.  These pages explain the proper
  Jul 15 17:41:26 ubuntu dhclient[892]: process and the information we find helpful for debugging..
  Jul 15 17:41:26 ubuntu dhclient[892]: 
  Jul 15 17:41:26 ubuntu dhclient[892]: exiting.
  Jul 15 17:41:26 ubuntu systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
  Jul 15 17:41:26 ubuntu systemd[1]: Failed to start Raise network interfaces.
  Jul 15 17:41:26 ubuntu systemd[1]: Dependency failed for Initial cloud-init job (metadata service crawler).
  Jul 15 17:41:26 ubuntu systemd[1]: cloud-init.service: Job cloud-init.service/start failed with result 'dependency'.
  Jul 15 17:41:26 ubuntu systemd[1]: networking.service: Unit entered failed state.
  Jul 15 17:41:26 ubuntu systemd[1]: networking.service: Failed with result 'exit-code'.
  Jul 15 17:41:26 ubuntu systemd[1]: Reached target Network.
  Jul 15 17:41:26 ubuntu systemd[1]: Reached target Network is Online.

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