[Bug 1928531] Re: After upgrade from 16.04 LTS (ESM with disabled UA) to 18.04 LTS (supported) all mentions of ESM should be removed from the system

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: distro-info (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1928531

Title:
  After upgrade from 16.04 LTS (ESM with disabled UA) to 18.04 LTS
  (supported) all mentions of ESM should be removed from the system

Status in distro-info package in Ubuntu:
  Confirmed
Status in ubuntu-advantage-tools package in Ubuntu:
  Triaged
Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed

Bug description:
  It is really strange to have ESM enabled on the 18.04 LTS which is
  supported.

  Currently I have:

  ```
  $ dpkg -S esm | grep ubuntu-advantage-tools
  ubuntu-advantage-tools: /usr/lib/ubuntu-advantage/apt-esm-hook
  ubuntu-advantage-tools: /usr/share/keyrings/ubuntu-advantage-esm-apps.gpg
  ubuntu-advantage-tools: /etc/update-motd.d/91-contract-ua-esm-status
  ubuntu-advantage-tools: /usr/lib/ubuntu-advantage/apt-esm-json-hook
  ubuntu-advantage-tools: /usr/lib/python3/dist-packages/uaclient/entitlements/esm.py
  ubuntu-advantage-tools: /etc/apt/apt.conf.d/20apt-esm-hook.conf
  ubuntu-advantage-tools: /usr/share/keyrings/ubuntu-advantage-esm-infra-trusty.gpg
  ubuntu-advantage-tools: /etc/update-motd.d/88-esm-announce

  $ sudo grep -r esm /etc/
  /etc/update-motd.d/88-esm-announce:stamp="/var/lib/ubuntu-advantage/messages/motd-esm-announce"
  /etc/update-motd.d/91-contract-ua-esm-status:stamp="/var/lib/ubuntu-advantage/messages/motd-esm-service-status"
  /etc/ubuntu-advantage/help_data.yaml:esm-apps:
  /etc/ubuntu-advantage/help_data.yaml:      its end of life. You can find out more about the esm service at
  /etc/ubuntu-advantage/help_data.yaml:      https://ubuntu.com/security/esm
  /etc/ubuntu-advantage/help_data.yaml:esm-infra:
  /etc/ubuntu-advantage/help_data.yaml:     esm-infra provides access to a private ppa which includes available high
  /etc/ubuntu-advantage/help_data.yaml:     You can find our more about the esm service at
  /etc/ubuntu-advantage/help_data.yaml:     https://ubuntu.com/security/esm
  /etc/apt/sources.list.d/ubuntu-esm-infra.list.distUpgrade:deb https://esm.ubuntu.com/infra/ubuntu xenial-infra-security main
  /etc/apt/sources.list.d/ubuntu-esm-infra.list.distUpgrade:# deb-src https://esm.ubuntu.com/infra/ubuntu xenial-infra-security main
  /etc/apt/sources.list.d/ubuntu-esm-infra.list.distUpgrade:deb https://esm.ubuntu.com/infra/ubuntu xenial-infra-updates main
  /etc/apt/sources.list.d/ubuntu-esm-infra.list.distUpgrade:# deb-src https://esm.ubuntu.com/infra/ubuntu xenial-infra-updates main
  /etc/apt/sources.list.d/ubuntu-esm-infra.list:deb https://esm.ubuntu.com/infra/ubuntu bionic-infra-security main
  /etc/apt/sources.list.d/ubuntu-esm-infra.list:# deb-src https://esm.ubuntu.com/infra/ubuntu xenial-infra-security main
  /etc/apt/sources.list.d/ubuntu-esm-infra.list:deb https://esm.ubuntu.com/infra/ubuntu bionic-infra-updates main
  /etc/apt/sources.list.d/ubuntu-esm-infra.list:# deb-src https://esm.ubuntu.com/infra/ubuntu xenial-infra-updates main
  /etc/apt/apt.conf.d/20apt-esm-hook.conf:	"[ ! -f /usr/lib/ubuntu-advantage/apt-esm-hook ] || /usr/lib/ubuntu-advantage/apt-esm-hook post-invoke-stats || true";
  /etc/apt/apt.conf.d/20apt-esm-hook.conf:	"[ ! -f /usr/lib/ubuntu-advantage/apt-esm-hook ] || /usr/lib/ubuntu-advantage/apt-esm-hook post-invoke-success || true";
  /etc/apt/apt.conf.d/20apt-esm-hook.conf:	"[ ! -f /usr/lib/ubuntu-advantage/apt-esm-hook ] || /usr/lib/ubuntu-advantage/apt-esm-hook pre-invoke || true";
  /etc/apt/apt.conf.d/20apt-esm-hook.conf:	"[ ! -f /usr/lib/ubuntu-advantage/apt-esm-json-hook ] || /usr/lib/ubuntu-advantage/apt-esm-json-hook || true";
  Binary file /etc/apt/trusted.gpg.d/ubuntu-advantage-esm-infra-trusty.gpg matches

  ```

  
  Having `https://esm.ubuntu.com/infra/ubuntu bionic-infra-updates` in sources.list is strange.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-advantage-tools 27.0.2~18.04.1
  ProcVersionSignature: Ubuntu 4.15.0-143.147-generic 4.15.18
  Uname: Linux 4.15.0-143-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.23
  Architecture: amd64
  CurrentDesktop: MATE
  Date: Sat May 15 10:59:54 2021
  InstallationDate: Installed on 2018-08-07 (1011 days ago)
  InstallationMedia: Ubuntu-MATE 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  SourcePackage: ubuntu-advantage-tools
  UpgradeStatus: Upgraded to bionic on 2021-05-15 (0 days ago)

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