[Bug 1907083] [NEW] hwe-support-status fails without displaying unsupported packages

[Clemens Drüe]

Public bug reported:

lsb_release -rd
Description:    Ubuntu 20.04.1 LTS
Release:        20.04

apt-cache policy update-manager-core 
update-manager-core:
  Installed: 1:20.04.10.1
  Candidate: 1:20.04.10.1
  Version table:
 *** 1:20.04.10.1 500
        500 http://de.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
        500 http://de.archive.ubuntu.com/ubuntu focal-updates/main i386 Packages
        100 /var/lib/dpkg/status
     1:20.04.9 500
        500 http://de.archive.ubuntu.com/ubuntu focal/main amd64 Packages
        500 http://de.archive.ubuntu.com/ubuntu focal/main i386 Packages


At every login I got a message from `/etc/update-motd.d/95-hwe-eol`
reading:

Your current Hardware Enablement Stack (HWE) is going out of support
on 2025-04-30.  After this date security updates for critical parts (kernel
and graphics stack) of your system will no longer be available.

For more information, please see:
http://wiki.ubuntu.com/2004_HWE_EOL

There is a graphics stack installed on this system. An upgrade to a
configuration supported for the full lifetime of the LTS will become
available on 2022-07-21 and can be installed by running 'update-manager'
in the Dash.

But calling `hwe-support-status --show-all-unsupported`
prints nothing but extits with nonzero returns code.
This causes 95-hwe-eol to print the above message.
By debugging /usr/bin/hwe-support-status I found that it is mocking about
xserver-xorg-core-lts-vivid
xserver-xorg-input-all-lts-vivid
linux-generic-lts-vivid
xserver-xorg-lts-vivid
libwayland-egl1-mesa-lts-vivid
xserver-xorg-video-all-lts-vivid
These were not removed while upgrading from ubuntu 16.04 to ubuntu 20.04
They were obsolete since xserver-xorg-core 2:1.20.8-2ubuntu2.6 is already installed
and could be removed without causing nor problems.
Doing so made the login message message go away.

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1907083

Title:
  hwe-support-status fails without displaying unsupported packages

Status in update-manager package in Ubuntu:
  New

Bug description:
  lsb_release -rd
  Description:    Ubuntu 20.04.1 LTS
  Release:        20.04

  apt-cache policy update-manager-core 
  update-manager-core:
    Installed: 1:20.04.10.1
    Candidate: 1:20.04.10.1
    Version table:
   *** 1:20.04.10.1 500
          500 http://de.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
          500 http://de.archive.ubuntu.com/ubuntu focal-updates/main i386 Packages
          100 /var/lib/dpkg/status
       1:20.04.9 500
          500 http://de.archive.ubuntu.com/ubuntu focal/main amd64 Packages
          500 http://de.archive.ubuntu.com/ubuntu focal/main i386 Packages


  At every login I got a message from `/etc/update-motd.d/95-hwe-eol`
  reading:

  Your current Hardware Enablement Stack (HWE) is going out of support
  on 2025-04-30.  After this date security updates for critical parts (kernel
  and graphics stack) of your system will no longer be available.

  For more information, please see:
  http://wiki.ubuntu.com/2004_HWE_EOL

  There is a graphics stack installed on this system. An upgrade to a
  configuration supported for the full lifetime of the LTS will become
  available on 2022-07-21 and can be installed by running 'update-manager'
  in the Dash.

  But calling `hwe-support-status --show-all-unsupported`
  prints nothing but extits with nonzero returns code.
  This causes 95-hwe-eol to print the above message.
  By debugging /usr/bin/hwe-support-status I found that it is mocking about
  xserver-xorg-core-lts-vivid
  xserver-xorg-input-all-lts-vivid
  linux-generic-lts-vivid
  xserver-xorg-lts-vivid
  libwayland-egl1-mesa-lts-vivid
  xserver-xorg-video-all-lts-vivid
  These were not removed while upgrading from ubuntu 16.04 to ubuntu 20.04
  They were obsolete since xserver-xorg-core 2:1.20.8-2ubuntu2.6 is already installed
  and could be removed without causing nor problems.
  Doing so made the login message message go away.

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