I've verified this functional in yakkety with test case as described above. $ dpkg-query --show overlayroot overlayroot 0.30ubuntu1.1
$ cat /etc/cloud/build.info build_name: server serial: 20161123
I've verified this functional in yakkety with test case as described above.
$ dpkg-query --show overlayroot
overlayroot 0.30ubuntu1.1
$ cat /etc/cloud/ build.info
build_name: server
serial: 20161123