[Bug 2150497] [NEW] Cannot upgrade to 26.04 from 24.04

[Mark]

Public bug reported:


main log contains:
Dist-upgrade failed: 'E:Fehler: Unterbrechungen durch pkgProblemResolver::Resolve hervorgerufen; dies könnte durch zurückgehaltene Pakete verursacht worden sein.'

but I do not see any marked withold packages nor any other issues, apt-
get update + dist-upgrade work fine.

lsb_release -rd

No LSB modules are available.
Description:	Ubuntu 24.04.4 LTS
Release:	24.04

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: ubuntu-release-upgrader-core 1:24.04.28
ProcVersionSignature: Ubuntu 6.17.0-22.22~24.04.1-generic 6.17.13
Uname: Linux 6.17.0-22-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: unknown
CrashDB: ubuntu
CrashReports: 600:0:124:403243:2026-04-27 21:14:48.115381215 +0200:2026-04-27 21:15:05.075401042 +0200:/var/crash/weasis.0.crash
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 27 21:50:11 2026
InstallationDate: Installed on 2019-10-26 (2375 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
PackageArchitecture: all
ProcEnviron:
 LANG=de_CH.UTF-8
 LANGUAGE=de_CH:de
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to noble on 2026-04-27 (0 days ago)
VarLogDistupgradeAptHistorylog:
 Start-Date: 2026-04-27  21:49:31
 Requested-By: marcel (1000)
 End-Date: 2026-04-27  21:49:32
VarLogDistupgradeApttermlog:
 Log started: 2026-04-27  21:49:31
 Log ended: 2026-04-27  21:49:32
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade noble

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https://bugs.launchpad.net/bugs/2150497

Title:
  Cannot upgrade to 26.04 from 24.04

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

Bug description:
  
  main log contains:
  Dist-upgrade failed: 'E:Fehler: Unterbrechungen durch pkgProblemResolver::Resolve hervorgerufen; dies könnte durch zurückgehaltene Pakete verursacht worden sein.'

  but I do not see any marked withold packages nor any other issues,
  apt-get update + dist-upgrade work fine.

  lsb_release -rd

  No LSB modules are available.
  Description:	Ubuntu 24.04.4 LTS
  Release:	24.04

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: ubuntu-release-upgrader-core 1:24.04.28
  ProcVersionSignature: Ubuntu 6.17.0-22.22~24.04.1-generic 6.17.13
  Uname: Linux 6.17.0-22-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CrashDB: ubuntu
  CrashReports: 600:0:124:403243:2026-04-27 21:14:48.115381215 +0200:2026-04-27 21:15:05.075401042 +0200:/var/crash/weasis.0.crash
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Apr 27 21:50:11 2026
  InstallationDate: Installed on 2019-10-26 (2375 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  PackageArchitecture: all
  ProcEnviron:
   LANG=de_CH.UTF-8
   LANGUAGE=de_CH:de
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to noble on 2026-04-27 (0 days ago)
  VarLogDistupgradeAptHistorylog:
   Start-Date: 2026-04-27  21:49:31
   Requested-By: marcel (1000)
   End-Date: 2026-04-27  21:49:32
  VarLogDistupgradeApttermlog:
   Log started: 2026-04-27  21:49:31
   Log ended: 2026-04-27  21:49:32
  VarLogDistupgradeTermlog:

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