I assumed this was due to me installing some random ppa from somewhere, but I eventually tracked this down to a conflict between python3-ldb and libldb2 from official repositories:
2:2.4.4-0ubuntu0.20.04.1 from the focal-updates repo
2:2.4.4-0ubuntu0.1 from the jammy-updates repo
I found this by updating apt with the jammy repos and running "apt-cache policy" on the broken packages, but you can see the package lists in the official locations for verification:
https://packages.ubuntu.com/focal-updates/allpackages
https://packages.ubuntu.com/jammy-updates/allpackages
This is not the only package, there are a number of python-related packages with this naming scheme, and I can't seem to get apt to resolve all of them. I can downgrade to the python version (2:2.0.8-2) in focal main, but then do-release-upgrade complains that I have updates.
I have worked around this by removing those packages (which also transitively removes: gnome-control-center gvfs-backends libsmbclient samba-libs ubuntu-desktop ubuntu-desktop-minimal vlc-plugin-samba), and then running the upgrade. But, this is clearly a bug in the upgrade process.
---
ProblemType: Bug
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-07-25 (957 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Package: ubuntu-release-upgrader (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 5.15.0-67.74~20.04.1-generic 5.15.85
Tags: focal dist-upgrade
Uname: Linux 5.15.0-67-generic x86_64
UpgradeStatus: Upgraded to focal on 2023-03-09 (0 days ago)
UserGroups: N/A
_MarkForUpload: True
---
ProblemType: Bug
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-07-25 (957 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Package: ubuntu-release-upgrader (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 5.15.0-67.74~20.04.1-generic 5.15.85
Tags: focal dist-upgrade
Uname: Linux 5.15.0-67-generic x86_64
UpgradeStatus: Upgraded to focal on 2023-03-09 (0 days ago)
UserGroups: N/A
_MarkForUpload: True
---
ProblemType: Bug
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-07-25 (957 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Package: ubuntu-release-upgrader (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 5.15.0-67.74~20.04.1-generic 5.15.85
Tags: focal dist-upgrade
Uname: Linux 5.15.0-67-generic x86_64
UpgradeStatus: Upgraded to focal on 2023-03-09 (0 days ago)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
Can you please run apport-collect 2009892 so that the appropriate logs from the upgrade process are attached to this bug report?