In /var/log/dist-upgrade/main.log
(earlier)
2023-07-31 12:38:07,292 ERROR NoDistroTemplateException raised: Error: could not find a distribution template for Ubuntu/focal
Traceback (most recent call last):
File "/tmp/ubuntu-release-upgrader-2ka77vmt/DistUpgrade/DistUpgradeController.py", line 508, in rewriteSourcesList
distro.get_sources(self.sources)
File "/tmp/ubuntu-release-upgrader-2ka77vmt/DistUpgrade/distro.py", line 91, in get_sources
raise NoDistroTemplateException(
DistUpgrade.distro.NoDistroTemplateException: Error: could not find a distribution template for Ubuntu/focal
(later)
2023-07-31 12:40:03,598 ERROR failed to mark 'kubuntu-desktop' for install (E:Unable to correct problems, you have held broken packages.)
2023-07-31 12:40:03,694 DEBUG denylist expr 'update-manager$' matches 'update-manager'
2023-07-31 12:40:03,694 DEBUG The package 'update-manager' is marked for removal but it's in the removal deny list
2023-07-31 12:40:03,722 ERROR Dist-upgrade failed: 'The package 'update-manager' is marked for removal but it is in the removal deny list.'
2023-07-31 12:40:03,735 DEBUG abort called
(full log files)
https://gandsnut.net/temp/apt.log
https://gandsnut.net/temp/main.log
Have tried apt-get update and upgrade, apt autoremove, the release upgrade process fails when running "sudo do-release-upgrade"
Not sure how to go forward. TY...