# Check that we are running the -proposed u-a-t package from the release pocket
root@jammy-test:~# apt policy ubuntu-advantage-tools
ubuntu-advantage-tools:
  Installed: 31.2~22.04
  Candidate: 31.2~22.04
  Version table:
 *** 31.2~22.04 500
        500 http://archive.ubuntu.com/ubuntu jammy-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     30~22.04 500
        500 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
     27.7~22.04.1 500
        500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages
root@jammy-test:~# pro version
31.2~22.04

# Attach a token, verify that esm-infra and esm-apps are enabled
root@jammy-test:~# pro attach <token>
Enabling default service esm-apps
Updating Ubuntu Pro: ESM Apps package lists
Ubuntu Pro: ESM Apps enabled
Enabling default service esm-infra
Updating Ubuntu Pro: ESM Infra package lists
Ubuntu Pro: ESM Infra enabled
This machine is now attached to 'server-team-ua-client-ci-uaa'

SERVICE          ENTITLED  STATUS       DESCRIPTION
anbox-cloud      yes       disabled     Scalable Android in the cloud
esm-apps         yes       enabled      Expanded Security Maintenance for Applications
esm-infra        yes       enabled      Expanded Security Maintenance for Infrastructure
fips-preview     yes       disabled     Preview of FIPS crypto packages undergoing certification with NIST
fips-updates     yes       disabled     FIPS compliant crypto packages with stable security updates
usg              yes       disabled     Security compliance and audit tools

NOTICES
Operation in progress: pro attach

For a list of all Ubuntu Pro services, run 'pro status --all'
Enable services with: pro enable <service>

                Account: UA Client Test
           Subscription: server-team-ua-client-ci-uaa
            Valid until: Fri Dec 31 00:00:00 9999 UTC
Technical support level: essential

# Now, try to perform a do-release-upgrade
root@jammy-test:~# do-release-upgrade --devel-release
Checking for a new Ubuntu release

= Welcome to Ubuntu 24.04 LTS 'Noble Numbat' =

(...)

# Suppressing output here because a) it is long and b) it contains errors, related to
# https://bugs.launchpad.net/ubuntu/+source/policykit-1/+bug/2054716
# Because of that, we are in noble after the release upgrade, but packages are left behind,
# Which leads to an incomplete transition.

(...)

# It is impossible to install the newest ubuntu-advantage-tools, because ubuntu-server is one of
# the packages affected by LP #2054716.
# However, the post-script for the release upgrade does work. We show the files generated by the script:
root@jammy-test:~# cat /etc/apt/sources.list.d/ubuntu-esm-infra.sources 
# Written by ubuntu-pro-client
Types: deb
URIs: https://esm.ubuntu.com/infra/ubuntu
Suites: noble-infra-security noble-infra-updates
Components: main
Signed-By: /usr/share/keyrings/ubuntu-pro-esm-infra.gpg
root@jammy-test:~# cat /etc/apt/sources.list.d/ubuntu-esm-apps.sources 
# Written by ubuntu-pro-client
Types: deb
URIs: https://esm.ubuntu.com/apps/ubuntu
Suites: noble-apps-updates noble-apps-security
Components: main
Signed-By: /usr/share/keyrings/ubuntu-pro-esm-apps.gpg

# We show that the previous .list files are not there anymore:
root@jammy-test:~# l /etc/apt/sources.list.d/*.list
ls: cannot access '/etc/apt/sources.list.d/*.list': No such file or directory

# We show that pro status lists esm services as available, as expected:
root@jammy-test:~# pro status
SERVICE          ENTITLED  STATUS       DESCRIPTION
esm-apps         yes       enabled      Expanded Security Maintenance for Applications
esm-infra        yes       enabled      Expanded Security Maintenance for Infrastructure

For a list of all Ubuntu Pro services, run 'pro status --all'
Enable services with: pro enable <service>

                Account: UA Client Test
           Subscription: server-team-ua-client-ci-uaa
            Valid until: Fri Dec 31 00:00:00 9999 UTC
Technical support level: essential

# We show that apt update presents no errors, warnings, or duplicates,
# and our repos are listed:
root@jammy-test:~# apt update
Hit:1 http://security.ubuntu.com/ubuntu noble-security InRelease
Hit:2 http://archive.ubuntu.com/ubuntu noble InRelease               
Hit:3 http://archive.ubuntu.com/ubuntu noble-updates InRelease       
Hit:4 https://esm.ubuntu.com/apps/ubuntu noble-apps-updates InRelease
Hit:5 https://esm.ubuntu.com/apps/ubuntu noble-apps-security InRelease
Hit:6 http://archive.ubuntu.com/ubuntu noble-backports InRelease
Hit:7 https://esm.ubuntu.com/infra/ubuntu noble-infra-security InRelease
Hit:8 http://archive.ubuntu.com/ubuntu noble-proposed InRelease
Hit:9 https://esm.ubuntu.com/infra/ubuntu noble-infra-updates InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
3 packages can be upgraded. Run 'apt list --upgradable' to see them.

# This validates the transition.