[Bug 2117519] [NEW] Can not upgrade from Ubuntu 24.10 to 25

[Michal Špondr]

Public bug reported:

After I try to upgrade with `sudo do-release-upgrade`, it stops with "An
unresolvable problem occurred while calculating the upgrade."

Maybe it is related with the following message above:


Continue [yN] y
Get:1 Upgrade tool signature [833 B]
Get:2 Upgrade tool [960 kB]
Fetched 961 kB in 0s (0 B/s)
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherCore.py:237: Warning: W:Download is performed unsandboxed as root as file 'plucky.tar.gz.gpg' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
  result = fetcher.run()
authenticate 'plucky.tar.gz' against 'plucky.tar.gz.gpg'
extracting 'plucky.tar.gz'

ProblemType: Bug
DistroRelease: Ubuntu 24.10
Package: ubuntu-release-upgrader-core 1:24.10.14
ProcVersionSignature: Ubuntu 6.11.0-29.29-generic 6.11.11
Uname: Linux 6.11.0-29-generic x86_64
ApportVersion: 2.30.0-0ubuntu4.4
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
CurrentDesktop: i3
Date: Tue Jul 22 21:29:48 2025
InstallationDate: Installed on 2023-02-15 (888 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221020)
PackageArchitecture: all
ProcEnviron:
 LANG=cs_CZ.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to oracular on 2025-07-22 (0 days ago)

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


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

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https://bugs.launchpad.net/bugs/2117519

Title:
  Can not upgrade from Ubuntu 24.10 to 25

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

Bug description:
  After I try to upgrade with `sudo do-release-upgrade`, it stops with
  "An unresolvable problem occurred while calculating the upgrade."

  Maybe it is related with the following message above:


  Continue [yN] y
  Get:1 Upgrade tool signature [833 B]
  Get:2 Upgrade tool [960 kB]
  Fetched 961 kB in 0s (0 B/s)
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherCore.py:237: Warning: W:Download is performed unsandboxed as root as file 'plucky.tar.gz.gpg' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
    result = fetcher.run()
  authenticate 'plucky.tar.gz' against 'plucky.tar.gz.gpg'
  extracting 'plucky.tar.gz'

  ProblemType: Bug
  DistroRelease: Ubuntu 24.10
  Package: ubuntu-release-upgrader-core 1:24.10.14
  ProcVersionSignature: Ubuntu 6.11.0-29.29-generic 6.11.11
  Uname: Linux 6.11.0-29-generic x86_64
  ApportVersion: 2.30.0-0ubuntu4.4
  Architecture: amd64
  CasperMD5CheckResult: pass
  CrashDB: ubuntu
  CurrentDesktop: i3
  Date: Tue Jul 22 21:29:48 2025
  InstallationDate: Installed on 2023-02-15 (888 days ago)
  InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221020)
  PackageArchitecture: all
  ProcEnviron:
   LANG=cs_CZ.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to oracular on 2025-07-22 (0 days ago)

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