Public bug reported:
Calculating the changes
Calculating the changes
Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
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
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: ubuntu-release-upgrader-core 1:24.04.29
ProcVersionSignature: Ubuntu 7.0.0-38.38~24.04.4-generic 7.0.14
Uname: Linux 7.0.0-38-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.28.3-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: unknown
CrashDB: ubuntu
CrashReports:
640:0:110:932349:2026-10-13 22:00:28.220940407 +1000:2026-10-13
23:00:18.561615308 +1000:/var/crash/_usr_bin_timeshift.0.crash
640:1000:110:986466:2026-10-11 14:12:35.361904656 +1000:2026-10-11
22:00:38.958651806 +1000:/var/crash/_usr_bin_btop.1000.crash
640:0:110:247872:2026-10-15 19:07:49.204923934 +1000:2026-10-15
23:00:39.656368032 +1000:/var/crash/_usr_bin_do-release-upgrade.0.crash
640:1000:110:58637524:2026-10-10 03:07:41.601405418 +1000:2026-10-10
20:00:37.252393765 +1000:/var/crash/_opt_brave.com_brave_brave.1000.crash
CurrentDesktop: KDE
Date: Sat Oct 17 13:04:27 2026
InstallationDate: Installed on 2026-01-30 (259 days ago)
InstallationMedia: Kubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to noble on 2026-10-17 (0 days ago)
VarLogDistupgradeAptHistorylog:
Start-Date: 2026-10-17 12:27:49
Requested-By: odium (1000)
End-Date: 2026-10-17 12:27:49
VarLogDistupgradeAptlog:
Log time: 2026-10-17 12:27:45.466317
Log time: 2026-10-17 12:27:48.436561
Log time: 2026-10-17 12:28:31.888867
Log time: 2026-10-17 12:28:41.576572
VarLogDistupgradeApttermlog:
Log started: 2026-10-17 12:27:49
Log ended: 2026-10-17 12:27:49
** 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/2171277
Title:
ubuntu 24.04 won't let me upgrade to ubuntu 26.04
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