OK it looks like the bug was fixed for the hvm:ebs-ssd (General Purpose SSD) AMI builds and not hvm:ebs (standard/magnetic EBS).
For example, in ubuntu-wily-15.10-amd64-server-20160105.1 for us-east-1: * ami-bfb5ead5 ( hvm:ebs ) - FAILS * ami-15b7e87f ( hvm:ebs-ssd ) - WORKS for enhanced networking instance launches. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1510345 Title: [SRU] Cloud Images do not bring up networking w/ certain virtual NICs due to device naming rules To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1510345/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs