fight: desktop-base vs kubuntu-settings-desktop vs fontconfig-common:

[Tornfrost]

The error popping up during the upgrade process says 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'.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: ubuntu-release-upgrader-core 1:22.04.19
ProcVersionSignature: Ubuntu 6.8.0-40.40~22.04.3-generic 6.8.12
Uname: Linux 6.8.0-40-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.6
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
CrashReports:
 664:1000:124:0:2024-08-30 10:13:56.619993377 -0700:2024-08-30 10:13:56.619993377 -0700:/var/crash/_usr_share_code_code.1000.upload
 640:0:124:169696:2024-08-31 12:36:47.809673198 -0700:2024-08-31 12:36:47.809673198 -0700:/var/crash/_usr_bin_do-release-upgrade.0.crash
 640:1000:124:9988448:2024-08-30 10:13:55.618993282 -0700:2024-08-30 10:13:56.645992933 -0700:/var/crash/_usr_share_code_code.1000.crash
 600:116:124:37:2024-08-30 10:13:57.323981350 -0700:2024-08-30 10:13:57.323981350 -0700:/var/crash/_usr_share_code_code.1000.uploaded
CurrentDesktop: KDE
Date: Sat Aug 31 13:22:58 2024
InstallationDate: Installed on 2023-11-05 (300 days ago)
InstallationMedia: Kubuntu 22.04.3 LTS "Jammy Jellyfish" - Release amd64 (20230807.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to jammy on 2024-08-31 (0 days ago)
VarLogDistupgradeTermlog:

[Julian Andres Klode (juliank)]

Due to the seeming lack of the actual failure in the main log for the Qt frontend, it does seem to be the continuing fight desktop-base vs kubuntu-settings-desktop vs fontconfig-common:

Investigating (19) fontconfig-config:amd64 < 2.13.1-4.2ubuntu5 -> 2.15.0-1.1ubuntu2 @ii umU Ib >
Broken fontconfig-config:amd64 Breaks on kubuntu-settings-desktop:amd64 < 1:22.04.10 | 1:24.04.12 @ii umH > (< 1:23.04.3)
  Considering kubuntu-settings-desktop:amd64 1 as a solution to fontconfig-config:amd64 59
  Upgrading kubuntu-settings-desktop:amd64 due to Breaks field in fontconfig-config:amd64
Investigating (19) kubuntu-settings-desktop:amd64 < 1:22.04.10 -> 1:24.04.12 @ii umU Ib >
Broken kubuntu-settings-desktop:amd64 Conflicts on desktop-base:amd64 < 11.0.3ubuntu1 -> 12.0.6+nmu1ubuntu1 @ii umU >
  Considering desktop-base:amd64 3 as a solution to kubuntu-settings-desktop:amd64 1
  MarkKeep kubuntu-settings-desktop:amd64 < 1:22.04.10 -> 1:24.04.12 @ii umU Ib > FU=0
  Holding Back kubuntu-settings-desktop:amd64 rather than change desktop-base:amd64

I also see

Broken libpcap0.8t64:amd64 Depends on libibverbs1:amd64 < none | 50.0-2build2 @un umH > (>= 1.1.6)
  Considering libibverbs1:amd64 0 as a solution to libpcap0.8t64:amd64 18
  MarkKeep libpcap0.8t64:amd64 < none -> 1.10.4-4.1ubuntu3 @un umN Ib > FU=0
  Holding Back libpcap0.8t64:amd64 rather than change libibverbs1:amd64

which is particularly complex.

It in turn:

Investigating (0) libkf5sysguard-bin:amd64 < none -> 4:5.27.11-0ubuntu3 @un uN Ib >
Broken libkf5sysguard-bin:amd64 Depends on libpcap0.8t64:amd64 < none | 1.10.4-4.1ubuntu3 @un umH > (>= 1.0.0)
  Considering libpcap0.8t64:amd64 18 as a solution to libkf5sysguard-bin:amd64 4
  MarkKeep libkf5sysguard-bin:amd64 < none -> 4:5.27.11-0ubuntu3 @un uN Ib > FU=0
  Holding Back libkf5sysguard-bin:amd64 rather than change libpcap0.8t64:amd64

then:

Broken kubuntu-desktop:amd64 Depends on libkf5sysguard-bin:amd64 < none | 4:5.27.11-0ubuntu3 @un uH >
  Considering libkf5sysguard-bin:amd64 4 as a solution to kubuntu-desktop:amd64 0
  MarkKeep kubuntu-desktop:amd64 < 1.418.1 -> 1.451 @ii umU Ib > FU=0
  Holding Back kubuntu-desktop:amd64 rather than change libkf5sysguard-bin:amd64

But I'm afraid I don't have a solution handy here.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Julian Andres Klode (juliank)]

Note for libpcap0.8t64 a smaller reproducer can be found in https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2078579

[Tim Wood (4til7)]

A bug I filed has been marked as a duplicate of this one. There seems to be a fair amount of effort here to dissect the various log files in '/var/log/dist-upgrade' ('main.log', 'apt.log').

main.log is 1331 lines long. Roughly 2/3rds follow a "Searching for replacement for ....Failed to find a replacement for...." pattern

apt.log is considerable larger (4205 lines). The tail end of the file is full of entries describing "Broken [package]"

Any help or suggestions welcome

[Tim Wood (4til7)]

Follow up on my prior comment with second log file