Thank you so much for the solution. Xubuntu 18.04.02. In the progress to install LAMP. Decided to switch to MariaDB after install mysql-server/client with apt. I forgot to purge mysql before "apt install mariadb-server/client", but it seems to be fine. Trying to run "mysel_secure_installation" and found that the server is not up. Hit this problem when trying to launch.
Thank you for the "apparmor_parser" solution so I don't have to reboot the system, and I could start the server. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806263 Title: MariaDB 10.1 server won't start when MySQL 5.7 server has been previously installed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1806263/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
