[Bug 2150852] Re: An unresolvable problem occurred while calculating the upgrade on WSL2 24.04 to 26.04

[alex kouw]

*** This bug is a duplicate of bug 2150319 ***
    https://bugs.launchpad.net/bugs/2150319

👍

Alex reacted via Gmail
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On Mon, 4 May 2026, 11:25 Simon Johnsson, <2150852 at bugs.launchpad.net>
wrote:

> *** This bug is a duplicate of bug 2150319 ***
>     https://bugs.launchpad.net/bugs/2150319
>
> ** This bug has been marked a duplicate of bug 2150319
>    lintian breaks upgrade from 24.04 to 26.04
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/2150852
>
> Title:
>   An unresolvable problem occurred while calculating the upgrade on WSL2
>   24.04 to 26.04
>
> Status in ubuntu-release-upgrader package in Ubuntu:
>   New
>
> Bug description:
>   on wsl2 I tried to upgrade to 26.04
>
>   I followed instructions:
>
>   sudo apt update
>   sudo apt upgrade -y
>   sudo apt dist-upgrade -y
>   sudo apt autoremove -y
>   sudo apt install update-manager-core
>   Prompt=lts
>   sudo do-release-upgrade -d
>
>
>   Checking package manager
>   Reading package lists... Done
>   Building dependency tree... Done
>   Reading state information... Done
>
>   Calculating the changes
>
>   Calculating the changes
>
>   Could not calculate the upgrade
>
>   An unresolvable problem occurred while calculating the upgrade.
>   ----- ERROR occurred here ---
>
>   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 details about the upgrade.
>   Specifically, look at 'main.log' and 'apt.log'.
>
>
>   Restoring original system state
>
>   Aborting
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 24.04
>   Package: ubuntu-release-upgrader-core 1:24.04.28
>   Uname: Linux 6.6.87.2-microsoft-standard-WSL2 aarch64
>   ApportVersion: 2.28.1-0ubuntu3.8
>   Architecture: arm64
>   CasperMD5CheckResult: unknown
>   CrashDB: ubuntu
>   Date: Mon May  4 09:19:48 2026
>   PackageArchitecture: all
>   ProcEnviron:
>    LANG=C.UTF-8
>    PATH=(custom, no user)
>    SHELL=/bin/bash
>    TERM=xterm-256color
>    XDG_RUNTIME_DIR=<set>
>   SourcePackage: ubuntu-release-upgrader
>   UpgradeStatus: Upgraded to noble on 2026-05-04 (0 days ago)
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2150852/+subscriptions
>
>


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Ubuntu.
https://bugs.launchpad.net/bugs/2150852

Title:
  An unresolvable problem occurred while calculating the upgrade on WSL2
  24.04 to 26.04

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

Bug description:
  on wsl2 I tried to upgrade to 26.04

  I followed instructions:

  sudo apt update
  sudo apt upgrade -y
  sudo apt dist-upgrade -y
  sudo apt autoremove -y
  sudo apt install update-manager-core
  Prompt=lts
  sudo do-release-upgrade -d

  
  Checking package manager
  Reading package lists... Done
  Building dependency tree... Done
  Reading state information... Done

  Calculating the changes

  Calculating the changes

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.
  ----- ERROR occurred here ---

  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 details about the upgrade.
  Specifically, look at 'main.log' and 'apt.log'.

  
  Restoring original system state

  Aborting

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: ubuntu-release-upgrader-core 1:24.04.28
  Uname: Linux 6.6.87.2-microsoft-standard-WSL2 aarch64
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: arm64
  CasperMD5CheckResult: unknown
  CrashDB: ubuntu
  Date: Mon May  4 09:19:48 2026
  PackageArchitecture: all
  ProcEnviron:
   LANG=C.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to noble on 2026-05-04 (0 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2150852/+subscriptions