Validation complete on trusty with new ua-client:

# 0. Install latest proposed update-notifier-common
ubuntu@dev-t3:~$ apt-cache policy update-notifier-common
update-notifier-common:
  Installed: 0.154.1ubuntu8
  Candidate: 0.154.1ubuntu8
  Version table:
 *** 0.154.1ubuntu8 0
        500 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main amd64 Packages
        100 /var/lib/dpkg/status


# 1. Unattached system with ESM disabled

ubuntu@dev-t3:~$ ua status

SERVICE      AVAILABLE  DESCRIPTION
cc-eal        no         Common Criteria EAL2 Provisioning Packages
esm-infra     yes        UA Infra: Extended Security Maintenance
fips          no         NIST-certified FIPS modules
fips-updates  no         Uncertified security updates to FIPS modules
livepatch     yes        Canonical Livepatch service

This machine is not attached to a UA subscription.
See https://ubuntu.com/advantage


# 2.  Force motd update for esm-related packages
sudo /usr/lib/update-notifier/update-motd-updates-available --force

UA Infrastructure Extended Security Maintenance (ESM) is not enabled.

2 updates can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable

Enable UA Infrastructure ESM to receive 52 additional security updates.
See https://ubuntu.com/advantage or run: sudo ua status

# 3. ssh as non-root and see dynamic motd
csmith@uptown:~/src$ ssh ubuntu@10.10.7.119
Welcome to Ubuntu 14.04.6 LTS (GNU/Linux 5.3.0-10-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

  System information as of Mon Oct  7 19:07:46 UTC 2019

  System load:    0.76      Processes:           19
  Usage of /home: unknown   Users logged in:     0
  Memory usage:   0%        IP address for eth0: 10.10.7.119
  Swap usage:     65%

  Graph this data and manage this system at:
    https://landscape.canonical.com/

UA Infrastructure Extended Security Maintenance (ESM) is not enabled.

2 updates can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable

Enable UA Infrastructure ESM to receive 52 additional security updates.
See https://ubuntu.com/advantage or run: sudo ua status

New release '16.04.6 LTS' available.
Run 'do-release-upgrade' to upgrade to it.


Last login: Mon Oct  7 19:07:46 2019 from 10.10.7.1





# Install latest 

# On Unattached system with ESM disabled:


ubuntu@dev-t3:~$ sudo /usr/lib/update-notifier/apt-check --human-readable
UA Infrastructure Extended Security Maintenance (ESM) is not enabled.

2 updates can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable

Enable UA Infrastructure ESM to receive 52 additional security updates.
See https://ubuntu.com/advantage or run: sudo ua status

# On Attached system with ESM enabled. updates are properly listed
ubuntu@dev-t3:~$ sudo /usr/lib/update-notifier/apt-check --human-readable
UA Infrastructure Extended Security Maintenance (ESM) is enabled.

54 updates can be installed immediately.
52 of these updates are provided through UA Infrastructure ESM.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable



##### Attached system with ESM enabled
# 4. Enabled esm
sudo ua attach <mytoken>
Enabling default service esm-infra
Updating package lists
ESM Infra enabled.
This machine is now attached to '<email address hidden>'.

SERVICE       ENTITLED  STATUS    DESCRIPTION
cc-eal        no        —         Common Criteria EAL2 Provisioning Packages
cis-audit     no        —         Center for Internet Security Audit Tools
esm-infra     yes       enabled   UA Infra: Extended Security Maintenance
fips          no        —         NIST-certified FIPS modules
fips-updates  no        —         Uncertified security updates to FIPS modules
livepatch     yes       n/a       Canonical Livepatch service

Enable services with: ua enable <service>

     Account: <email address hidden>
Subscription: <email address hidden>


# 5.  Force motd update for attached machine with ESM enabled
ubuntu@dev-t3:~$ sudo /usr/lib/update-notifier/update-motd-updates-available --force

UA Infrastructure Extended Security Maintenance (ESM) is enabled.

54 updates can be installed immediately.
52 of these updates are provided through UA Infrastructure ESM.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable


# 6. ssh Login to see full updated motd

csmith@uptown:~/src$ ssh ubuntu@10.10.7.119
Welcome to Ubuntu 14.04.6 LTS (GNU/Linux 5.3.0-10-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

  System information as of Mon Oct  7 19:12:07 UTC 2019

  System load:    0.9       Processes:           19
  Usage of /home: unknown   Users logged in:     0
  Memory usage:   0%        IP address for eth0: 10.10.7.119
  Swap usage:     65%

  Graph this data and manage this system at:
    https://landscape.canonical.com/

UA Infrastructure Extended Security Maintenance (ESM) is not enabled.

2 updates can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable

Enable UA Infrastructure ESM to receive 52 additional security updates.
See https://ubuntu.com/advantage or run: sudo ua status

New release '16.04.6 LTS' available.
Run 'do-release-upgrade' to upgrade to it.