Hi, thanks for your report and your help to make Ubuntu better. Services have to be restarted on upgrades to pick up the new code. In your case from your log it seems that mysql started, but was unable to stop/restart well: Error: Unable to shut down server with process id 15798
Sadly the attached mysql error log is from a later restart, and does not show what failed back then. Have you had a look if the past of that logfile has more information that might be useful? It might be related to your local setup being phpmyadmin or anything else, or even just a system overload at the wrong time. If by now you have resolved it by just unmasking/starting mysql again then there should be nothing left to do to resolve. I'm marking this incomplete, if this still is an issue continue to answer the questions I had above. But if you are happy with it as-is now, then we can just let it expire giving others a chance to chime in if needed. P.S. none of the errors seems to match, but I'm slightly wondering about "Too many levels of symbolic links: '/etc/mysql/my.cnf'" is that a custom setup adding a recursive link there? ** Changed in: mysql-8.0 (Ubuntu) Status: New => Incomplete ** Summary changed: - package mysql-server-8.0 8.0.27-0ubuntu0.20.04.1 failed to install/upgrade: installed mysql-server-8.0 package post-installation script subprocess returned error exit status 1 + Upgrade error - Unable to shut down server with process id -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1955172 Title: Upgrade error - Unable to shut down server with process id To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-8.0/+bug/1955172/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs