Comment 3 for bug 1577844

Scott Moser (smoser) wrote :

some futher thought one reason for the blocking of udev was to have the .link files that cloud-init wrote apply.
It turns out that systemd.link will only rename devices once (based on a property in the devices /sys that says it has been renamed).

So, for cloud-init to have these apply we will probably have to unbind and bind the device to clear that. that will also generate a hotplug event to get the device changed.

http://paste.ubuntu.com/16220589/