[Bug 2131129] Re: impossible upgrade libc6 cannot be update

[Chris Guiver]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

Bug reporting is about finding & fixing problems thus preventing future
users from hitting the same bug.

I suspect a Support site would be more appropriate, eg.
https://answers.launchpad.net/ubuntu. You can also find help with your
problem in the support forum of your local Ubuntu community
http://loco.ubuntu.com/ or asking at https://askubuntu.com or
https://discourse.ubuntu.com/t/welcome-to-support-and-help/49951, or for
more support options please look at
https://discourse.ubuntu.com/t/community-support/709


( You've filed this against the ubuntu-release-upgrade package, which is used to UPGRADE a release to a newer release; your details show you've not applied all 24.04/noble packages, and thus aren't ready to UPGRADE your release to 25.04/plucky yet.

You need to fix issues on your existing 24.04 system before upgrading to
a later release, which is what ubuntu-release-upgrader does.  Support
can help you with your 24.04/noble issue.  The Ubuntu-release-upgrader
package will upgrade libc6 to 2.41-6ubuntu1.2 from plucky-security (ie.
25.04 repository) which isn't what you need to do [yet] )

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/2131129

Title:
  impossible upgrade  libc6 cannot be update

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

Bug description:
  An unresolvable problem occurred while initializing the package
  information.

  Please report this bug against the 'update-manager' package and include the following error message:
  E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

  ~ $ sudo apt --fix-broken install
  Reading package lists... Done
  Building dependency tree... Done
  Reading state information... Done
  Correcting dependencies... failed.
  The following packages have unmet dependencies:
   libc6-dbg : Depends: libc6 (= 2.39-0ubuntu8.6) but 2.39-0ubuntu8.5 is installed
   libc6-dev : Depends: libc6 (= 2.39-0ubuntu8.6) but 2.39-0ubuntu8.5 is installed
   libpam-modules : PreDepends: libpam-modules-bin (= 1.5.3-5ubuntu5.4)
  E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
  E: Unable to correct dependencies

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: ubuntu-release-upgrader-core 1:24.04.27 [origin: unknown]
  ProcVersionSignature: Ubuntu 6.8.0-71.71-generic 6.8.12
  Uname: Linux 6.8.0-71-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  CasperMD5CheckResult: pass
  CrashDB: ubuntu
  CrashReports:
   600:117:124:37:2025-11-06 08:25:18.249586547 +0100:2025-11-10 08:00:10.034925003 +0100:/var/crash/_opt_zoom_zoom.1000.uploaded
   644:1000:124:0:2025-11-06 08:25:17.035594236 +0100:2025-11-06 08:25:17.035594236 +0100:/var/crash/_opt_zoom_zoom.1000.upload
   640:1000:124:22510794:2025-11-06 08:25:17.034594242 +0100:2025-11-10 08:00:10.003925004 +0100:/var/crash/_opt_zoom_zoom.1000.crash
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Nov 12 07:38:58 2025
  InstallationDate: Installed on 2024-01-21 (661 days ago)
  InstallationMedia: Ubuntu 22.04.3 LTS "Jammy Jellyfish" - Release amd64 (20230807.2)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to noble on 2025-11-12 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2025-11-12 07:38:44.223400
   Log time: 2025-11-12 07:38:58.614506
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2025-09-27T18:47:34.377852

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