[Bug 2084610] Re: Update marks update-manager for removal causing to abort

[Enock Kasaadha]

Triaged this bug and consolidated five other reports as duplicates: bug
#2095232, bug #2116208, bug #2142961, bug #2143656, bug #2143782, and
bug #2139330. The bug report spans three different upgrade paths (20.04
to 22.04, 22.04 to 24.04, 23.04 to 24.04)

The common underlying behavior, visible in the debug log of duplicate
bug #2095232 comment #0, is: the upgrader fails to mark ubuntu-desktop
(or another desktop meta-package) for upgrade because of held broken
packages, then tries to remove update-manager as part of conflict
resolution, and hits the denylist regex update-manager$ in
/usr/share/ubuntu-release-upgrader/removal_denylist.cfg, which causes a
hard upgrader failure with a misleading error message.

The probable trigger differs across reporters but the upgrader code path
that converts a recoverable held-package conflict into an unrecoverable
denylist failure is the same in all six.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/2084610

Title:
  Update marks update-manager for removal causing to abort

Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed

Bug description:
  Error Cited:

  '''**Could not calculate the upgrade**

  An unresolved problem occurred while calculating the upgrade.

  The package update-manager is marked for removal but it is in the
  removal deny list.

  If none of this applies, then please report this bug using the command
  'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If you want
  to investigate this yourself the log files in '/var/log/dist-upgrade'
  will contain the details about the upgrade. Specifically, look at
  'main.log' and 'apt.log'.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: ubuntu-release-upgrader-core 1:24.04.19
  ProcVersionSignature: Ubuntu 6.8.0-45.45-generic 6.8.12
  Uname: Linux 6.8.0-45-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CrashDB: ubuntu
  CrashReports:
   600:108:115:5:2024-10-13 14:04:55.848700833 -0400:2024-10-13 14:04:55.848700833 -0400:/var/crash/_opt_waterfox_waterfox.1000.uploaded
   640:1000:115:111436061:2024-10-13 14:04:54.719721151 -0400:2024-10-13 14:04:54.877718308 -0400:/var/crash/_opt_waterfox_waterfox.1000.crash
   644:1000:115:0:2024-10-13 14:04:54.720721133 -0400:2024-10-13 14:04:54.720721133 -0400:/var/crash/_opt_waterfox_waterfox.1000.upload
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Oct 15 18:21:07 2024
  InstallationDate: Installed on 2023-11-20 (331 days ago)
  InstallationMedia: Ubuntu 23.04 "Lunar Lobster" - Release amd64 (20230418)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to noble on 2024-10-15 (0 days ago)
  VarLogDistupgradeAptHistorylog:
   Start-Date: 2024-10-15  18:18:55
   Requested-By: bluewolf (1000)
   End-Date: 2024-10-15  18:18:55
  VarLogDistupgradeApttermlog:
   Log started: 2024-10-15  18:18:55
   Log ended: 2024-10-15  18:18:55
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2024-05-23T10:36:50.445851

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2084610/+subscriptions