[Bug 2130935] [NEW] do-distro-upgrade crashes during the upgrade calculation

[Dzmitry Petukhou]

Public bug reported:

Attempting to upgrade Ubuntu 25.04 (Plucky) to 25.10 using do-release-
upgrade fails on the upgrade computation with an unresolved error.

ProblemType: Bug
DistroRelease: Ubuntu 25.04
Package: ubuntu-release-upgrader-core 1:25.04.18
ProcVersionSignature: Ubuntu 6.14.0-35.35-generic 6.14.11
Uname: Linux 6.14.0-35-generic x86_64
ApportVersion: 2.32.0-0ubuntu5.3
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sat Nov  8 11:49:43 2025
InstallationDate: Installed on 2024-02-25 (622 days ago)
InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/usr/bin/zsh
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to plucky on 2025-11-08 (0 days ago)

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


** Tags: amd64 apport-bug dist-upgrade plucky wayland-session

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https://bugs.launchpad.net/bugs/2130935

Title:
  do-distro-upgrade crashes during the upgrade calculation

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

Bug description:
  Attempting to upgrade Ubuntu 25.04 (Plucky) to 25.10 using do-release-
  upgrade fails on the upgrade computation with an unresolved error.

  ProblemType: Bug
  DistroRelease: Ubuntu 25.04
  Package: ubuntu-release-upgrader-core 1:25.04.18
  ProcVersionSignature: Ubuntu 6.14.0-35.35-generic 6.14.11
  Uname: Linux 6.14.0-35-generic x86_64
  ApportVersion: 2.32.0-0ubuntu5.3
  Architecture: amd64
  CasperMD5CheckResult: pass
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Nov  8 11:49:43 2025
  InstallationDate: Installed on 2024-02-25 (622 days ago)
  InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
  PackageArchitecture: all
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/usr/bin/zsh
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to plucky on 2025-11-08 (0 days ago)

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