Comment 9 for bug 1836236

Xenial verification

No warnings or errors during upgrade:
Get:1 http://azure.archive.ubuntu.com/ubuntu xenial-proposed/main amd64 base-files amd64 9.4ubuntu4.11 [67.5 kB]
Fetched 67.5 kB in 0s (1,082 kB/s)
(Reading database ... 78928 files and directories currently installed.)
Preparing to unpack .../base-files_9.4ubuntu4.11_amd64.deb ...
Unpacking base-files (9.4ubuntu4.11) over (9.4ubuntu4.8) ...
Processing triggers for plymouth-theme-ubuntu-text (0.9.2-3ubuntu13.5) ...
update-initramfs: deferring update (trigger activated)
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for install-info (6.1.0.dfsg.1-5) ...
Processing triggers for initramfs-tools (0.122ubuntu8.15) ...
update-initramfs: Generating /boot/initrd.img-4.15.0-1060-azure
W: mdadm: /etc/mdadm/mdadm.conf defines no arrays.
Setting up base-files (9.4ubuntu4.11) ...

The motd-news.timer is installed and will run in 7h:
ubuntu@xenial-motd:~$ systemctl list-timers
NEXT LEFT LAST PASSED UNIT ACTIVATES
Sat 2019-10-05 02:13:08 UTC 7h left n/a n/a motd-news.timer motd-news.service
Sat 2019-10-05 06:01:07 UTC 11h left n/a n/a apt-daily.timer apt-daily.service
Sat 2019-10-05 06:35:02 UTC 12h left n/a n/a apt-daily-upgrade.timer apt-daily-upgrade.service
Sat 2019-10-05 18:14:55 UTC 23h left Fri 2019-10-04 18:14:55 UTC 6min ago systemd-tmpfiles-clean.timer systemd-tmpfiles-clean.service

4 timers listed.
Pass --all to see loaded but inactive timers, too.

motd message is now displayed:
ubuntu@xenial-motd:~$ sudo sh /etc/update-motd.d/50-motd-news --force

 * Kata Containers are now fully integrated in Charmed Kubernetes 1.16!
   Yes, charms take the Krazy out of K8s Kata Kluster Konstruction.

     https://ubuntu.com/kubernetes/docs/release-notes

Confirmed upon logging in:
andreas@nsnx:~$ ssh ubuntu@13.90.92.78
Welcome to Ubuntu 16.04.6 LTS (GNU/Linux 4.15.0-1057-azure x86_64)

 * Documentation: https://help.ubuntu.com
 * Management: https://landscape.canonical.com
 * Support: https://ubuntu.com/advantage

 * Kata Containers are now fully integrated in Charmed Kubernetes 1.16!
   Yes, charms take the Krazy out of K8s Kata Kluster Konstruction.

     https://ubuntu.com/kubernetes/docs/release-notes

26 packages can be updated.
0 updates are security updates.

New release '18.04.2 LTS' available.
Run 'do-release-upgrade' to upgrade to it.

*** System restart required ***
Last login: Fri Oct 4 18:15:19 2019 from 187.107.24.4