Trying to upgrade 20.04 to 22.04 but all answers not working

Question

I issued the commands:

sudo apt-get clean && sudo apt-get autoremove

and get the following output:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
4 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up update-notifier-common (3.192.30.17) ...
Traceback (most recent call last):
  File "/usr/lib/update-notifier/package-data-downloader", line 29, in <module>
    import apt_pkg
ModuleNotFoundError: No module named 'apt_pkg'
dpkg: error processing package update-notifier-common (--configure):
 installed update-notifier-common package post-installation script subprocess returned error exit status 1
Setting up unattended-upgrades (2.3ubuntu0.3) ...
dpkg: error processing package unattended-upgrades (--configure):
 installed unattended-upgrades package post-installation script subprocess returned error exit status 10
dpkg: dependency problems prevent configuration of update-notifier:
 update-notifier depends on update-notifier-common (= 3.192.30.17); however:
  Package update-notifier-common is not configured yet.
dpkg: error processing package update-notifier (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of update-manager:
 update-manager depends on update-notifier; however:
  Package update-notifier is not configured yet.
dpkg: error processing package update-manager (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                          No apport report written because MaxReports is reached already
        Errors were encountered while processing:
 update-notifier-common
 unattended-upgrades
 update-notifier
 update-manager
E: Sub-process /usr/bin/dpkg returned an error code (1)

I have searched stack exchange but have not been able to find a fix

The most common reason for ModuleNotFoundError: No module named 'apt_pkg' is that the version of Python3 is no longer the stock version that came with Ubuntu. — user535733, Mar 22 '24 at 01:04
Let's find out if that's your case: Please edit your question to show us the complete output of apt list python3 — user535733, Mar 22 '24 at 01:11
python3/focal,now 3.8.2-0ubuntu2 amd64 [installed] python3/focal 3.8.2-0ubuntu2 i386. I've removed and reinstalled python3 several times — user1624837, Mar 22 '24 at 01:52
Etiquette: "edit your question" means just that. Avoid adding information in comments, which are often overlooked or deleted. A good question is the best way to attract useful help. — user535733, Mar 22 '24 at 02:14
I think we lack some important background. Please edit your question to explain more: Why did you need to reinstall Python3 several times? What problem were you trying to solve? What led you to use the "clean" command? — user535733, Mar 22 '24 at 02:17
Does this answer your question? How to fix error `No module named 'apt_pkg' in Ubuntu 20.04? — moo, Mar 22 '24 at 06:53
Does this answer your question? Package dbus is not configured yet — karel, Mar 22 '24 at 09:43
No. After re-installing and selecting python 3.8 (previously 3.10). The upgrade started, but failed with error code 1. Now I cannot start the machine as it cannot load some system libraries. Is there a way to get out of this? — user1624837, Mar 22 '24 at 13:21

Trying to upgrade 20.04 to 22.04 but all answers not working

0 Answers0