Thank you for taking the time to file a bug report. From the logs, we can see that a mysql process not managed by the mysql package was running during the upgrade:
Setting up mysql-server-8.0 (8.0.28-0ubuntu0.20.04.3) ... mysqld will log errors to /var/log/mysql/error.log mysqld is running as pid 63741 Error: Unable to shut down server with process id 63741 In the mysql logs, we cannot see any reference to the PID 63741. Are you running a mysql process not managed by the debian package? For instance, via a container. Since there is not enough information in your report to begin triage or to differentiate between a local configuration problem and a bug in Ubuntu, I am marking this bug as "Incomplete". We would be grateful if you would: provide a more complete description of the problem, explain why you believe this is a bug in Ubuntu rather than a problem specific to your system, and then change the bug status back to "New". For local configuration issues, you can find assistance here: http://www.ubuntu.com/support/community ** Changed in: mysql-8.0 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1960202 Title: package mysql-server-8.0 8.0.28-0ubuntu0.20.04.3 failed to install/upgrade: installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-8.0/+bug/1960202/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
