[Bug 2133872] Re: Unable to upgrade to 26.04 - foreign packages installed

[Launchpad Bug Tracker]

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

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

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https://bugs.launchpad.net/bugs/2133872

Title:
  Unable to upgrade to 26.04 - foreign packages installed

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

Bug description:
  I am trying to upgrade to 26.04 (in development) from 25.10 using:

  sudo do-release-upgrade -d

  It gets to the following section and then states I have unofficial
  packages installed:

  The following unofficial packages are currently installed:

  bpftool..................Installed from: unknown origin
  cups.....................Installed from: unknown origin
  cups-bsd.................Installed from: unknown origin
  cups-client..............Installed from: unknown origin
  cups-common..............Installed from: unknown origin
  cups-core-drivers........Installed from: unknown origin
  cups-daemon..............Installed from: unknown origin
  cups-ipp-utils...........Installed from: unknown origin
  cups-ppdc................Installed from: unknown origin
  cups-server-common.......Installed from: unknown origin
  libcups2t64..............Installed from: unknown origin
  libcupsimage2t64.........Installed from: unknown origin
  linux-generic............Installed from: unknown origin
  linux-headers-generic....Installed from: unknown origin
  linux-image-generic......Installed from: unknown origin
  linux-libc-dev...........Installed from: unknown origin
  linux-perf...............Installed from: unknown origin
  linux-tools-common.......Installed from: unknown origin
  xserver-common...........Installed from: unknown origin
  xserver-xephyr...........Installed from: unknown origin
  xserver-xorg-core........Installed from: unknown origin
  xserver-xorg-legacy......Installed from: unknown origin

  But, these packages are official?

  sudo apt-cache policy cups xserver-xorg-core linux-generic
  cups:
    Installed: 2.4.12-0ubuntu3.3
    Candidate: 2.4.12-0ubuntu3.3
    Version table:
   *** 2.4.12-0ubuntu3.3 500
          500 http://gb.archive.ubuntu.com/ubuntu questing-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu questing-security/main amd64 Packages
          100 /var/lib/dpkg/status
       2.4.12-0ubuntu3 500
          500 http://gb.archive.ubuntu.com/ubuntu questing/main amd64 Packages
  xserver-xorg-core:
    Installed: 2:21.1.18-1ubuntu1.1
    Candidate: 2:21.1.18-1ubuntu1.1
    Version table:
   *** 2:21.1.18-1ubuntu1.1 500
          500 http://gb.archive.ubuntu.com/ubuntu questing-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu questing-security/main amd64 Packages
          100 /var/lib/dpkg/status
       2:21.1.18-1ubuntu1 500
          500 http://gb.archive.ubuntu.com/ubuntu questing/main amd64 Packages
  linux-generic:
    Installed: 6.17.0-7.7
    Candidate: 6.17.0-7.7
    Version table:
   *** 6.17.0-7.7 500
          500 http://gb.archive.ubuntu.com/ubuntu questing-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu questing-security/main amd64 Packages
          100 /var/lib/dpkg/status
       6.17.0-5.5 500
          500 http://gb.archive.ubuntu.com/ubuntu questing/main amd64 Packages

  Reinstalling the packages does not resolve the issue:

  sudo apt-get install --reinstall cups xserver-xorg-core linux-generic
  Reading package lists... Done
  Building dependency tree... Done
  Reading state information... Done
  Solving dependencies... Done
  0 upgraded, 0 newly installed, 3 reinstalled, 0 to remove and 12 not upgraded.
  Need to get 0 B/1,821 kB of archives.
  After this operation, 0 B of additional disk space will be used.
  Preconfiguring packages ...
  (Reading database ... 293790 files and directories currently installed.)
  Preparing to unpack .../cups_2.4.12-0ubuntu3.3_amd64.deb ...
  Unpacking cups (2.4.12-0ubuntu3.3) over (2.4.12-0ubuntu3.3) ...
  Preparing to unpack .../linux-generic_6.17.0-7.7_amd64.deb ...
  Unpacking linux-generic (6.17.0-7.7) over (6.17.0-7.7) ...
  Preparing to unpack .../xserver-xorg-core_2%3a21.1.18-1ubuntu1.1_amd64.deb ...
  Unpacking xserver-xorg-core (2:21.1.18-1ubuntu1.1) over (2:21.1.18-1ubuntu1.1) ...
  Setting up linux-generic (6.17.0-7.7) ...
  Setting up cups (2.4.12-0ubuntu3.3) ...
  Updating PPD files for cups ...
  Setting up xserver-xorg-core (2:21.1.18-1ubuntu1.1) ...
  Processing triggers for man-db (2.13.1-1) ...

  cat /etc/apt/sources.list.d/ubuntu.sources
  Types: deb
  URIs: http://gb.archive.ubuntu.com/ubuntu/
  Suites: questing questing-updates questing-backports
  Components: main restricted universe multiverse
  Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

  Types: deb
  URIs: http://security.ubuntu.com/ubuntu/
  Suites: questing-security
  Components: main restricted universe multiverse
  Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

  ProblemType: Bug
  DistroRelease: Ubuntu 25.10
  Package: ubuntu-release-upgrader-core 1:25.10.8
  ProcVersionSignature: Ubuntu 6.17.0-7.7-generic 6.17.2
  Uname: Linux 6.17.0-7-generic x86_64
  ApportVersion: 2.33.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: pass
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Dec  4 12:18:53 2025
  InstallationDate: Installed on 2025-07-10 (147 days ago)
  InstallationMedia: Ubuntu 25.10 "Questing Quokka" - Daily amd64 (20250710)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to questing on 2025-12-04 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2025-12-04 12:16:00.951881
   Log time: 2025-12-04 12:16:01.799135
   Log time: 2025-12-04 12:16:19.568456

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