Public bug reported:
When trying to upgrade from 24.04LTS to 25.10 the do-release-upgrade tool
fails, reporting
"Es konnte nicht ermittelt werden, welche Systemaktualisierungen
verfügbar sind
Ein unlösbares Problem trat während der Berechnung der
Systemaktualisierung auf."
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: ubuntu-release-upgrader-core 1:24.04.28
ProcVersionSignature: Ubuntu 6.8.0-117.117-generic 6.8.12
Uname: Linux 6.8.0-117-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: unknown
CrashDB: ubuntu
CrashReports:
640:1000:116:18094190:2026-05-18 15:57:35.143381692 +0200:2026-05-18
15:57:32.047369328 +0200:/var/crash/_usr_share_code_code.1000.crash
600:0:116:172677:2026-05-11 16:07:51.068217682 +0200:2026-05-11
16:07:51.056217683 +0200:/var/crash/linux-image-6.17.0-14-generic.0.crash
640:1000:116:2048171:2026-05-15 18:58:22.428525504 +0200:2026-05-15
18:58:20.443597422 +0200:/var/crash/_usr_bin_xfce4-panel.1000.crash
640:1000:116:50418989:2026-05-19 13:09:23.123358744 +0200:2026-05-19
13:09:19.056341729 +0200:/var/crash/_opt_Signal_signal-desktop.1000.crash
CurrentDesktop: XFCE
Date: Tue May 19 13:40:41 2026
InstallationDate: Installed on 2016-07-25 (3585 days ago)
InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to noble on 2026-05-19 (0 days ago)
mtime.conffile..etc.update-manager.release-upgrades: 2026-05-19T12:53:52.159672
** 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/2153144
Title:
upgrade 24.04LTS to 25.10 fails
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