NOTE: MariaDB is installed without root password, it is recommended to set the
root password with the following command as soon as possible:

   mysqladmin password

The initscript used to start mysql has been reverted to use the one shipped
by MariaDB. This means the following changes:

 * The generation of the initial system mysql database is now done when mysql
   is started from the initscript and only if the /var/lib/mysql/mysql
   directory is empty (mysql_install_db). Previousely this was quite hidden and
   silently done at (rpm) install time. As a consequence to this change you may
   have to perform some manual tasks to upgrade the mysql system database and
   such. So, doing something like this might help you:

   systemctl stop mysqld.service
   TMPDIR=/var/tmp mysql_install_db
   mysql_upgrade --skip-write-binlog

The cluster functionalities (ndb) has been deactivated and will be removed in
future mysql versions. Oracle has a new product named mysql-cluster that
replaces the cluster functionalities.

The mysql-common-core package ships with a default /etc/my.cnf file that is 
based on the my-medium.cnf file that comes with the source code.