Receiving an Ubuntu Pro "ESM" message on supported LTS server.

[Will Fuller]

Running Ubuntu Server 20.04.5 LTS, which is supported until year 2030 according to your website.

Now receiving the following message whenever I do an apt update from command line:

The following security updates require Ubuntu Pro with 'esm-apps' enabled:
  python2.7-dev mc libmagickcore-6.q16-6-extra imagemagick python2.7-minimal
  libmagickwand-6.q16-6 libpython2.7 python2.7 libpython2.7-dev mc-data
  imagemagick-6.q16 libjs-jquery-ui libopenexr24 libmagickcore-6.q16-6 glances
  libpython2.7-minimal libpython2.7-stdlib imagemagick-6-common

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: update-manager-core 1:20.04.10.11
ProcVersionSignature: Ubuntu 5.4.0-137.154-generic 5.4.218
Uname: Linux 5.4.0-137-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.25
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Jan 27 09:34:56 2023
InstallationDate: Installed on 2017-06-07 (2059 days ago)
InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.8)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to focal on 2022-09-13 (135 days ago)

[Michael Poly (mpoly)]

After looking further, I think it's intentional, to promote use of Ubuntu Pro.

You can disable it by removing or commenting out /etc/apt/apt.conf.d/20apt-esm-hook.conf (or, presumably, by upgrading to Pro)

[Launchpad Janitor (janitor)]

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

[Pavel (ppv)]

Not "apt update" but "apt upgrade".