As the log actually states, the problem was that another instance of mysqld was using the port:
Can't start server: Bind on TCP/IP port: Address already in use I am still leaving this issue open as the appamore DENIED operation might be something which should be fixed in the apparmor profile. ** Summary changed: - mysqld not starting after upgrade (apparmor) + mysqld DENIED audit messages for /proc/sys/kernel/random/boot_id (apparmor) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1879382 Title: mysqld DENIED audit messages for /proc/sys/kernel/random/boot_id (apparmor) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-8.0/+bug/1879382/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
