root /var/lib # /usr/local/mariadb/bin/mysql_upgrade -v -v -s -p

Enter password: 

Looking for 'mysql' as: /usr/local/mariadb/bin/mysql

Looking for 'mysqlcheck' as: /usr/local/mariadb/bin/mysqlcheck

The --upgrade-system-tables option was used, user tables won't be touched.

Phase 1/7: Checking and upgrading mysql database

Running 'mysqlcheck' with connection arguments: --port='3306' --socket='/var/run/mysqld/mysqld.sock' 

# Connecting to localhost...

# Disconnecting from localhost...

Processing databases

mysql

mysql.column_stats                                 OK

mysql.columns_priv                                 OK

mysql.db                                           OK

mysql.event                                        OK

mysql.func                                         OK

mysql.gtid_slave_pos                               OK

mysql.help_category                                OK

mysql.help_keyword                                 OK

mysql.help_relation                                OK

mysql.help_topic                                   OK

mysql.host                                         OK

mysql.index_stats                                  OK

mysql.plugin                                       OK

mysql.proc                                         OK

mysql.procs_priv                                   OK

mysql.proxies_priv                                 OK

mysql.roles_mapping                                OK

mysql.servers                                      OK

mysql.table_stats                                  OK

mysql.tables_priv                                  OK

mysql.time_zone                                    OK

mysql.time_zone_leap_second                        OK

mysql.time_zone_name                               OK

mysql.time_zone_transition                         OK

mysql.time_zone_transition_type                    OK

mysql.user                                         OK

Phase 2/7: Installing used storage engines... Skipped

Phase 3/7: Fixing views... Skipped

Phase 4/7: Running 'mysql_fix_privilege_tables'

Phase 5/7: Fixing table and database names ... Skipped

Phase 6/7: Checking and upgrading tables... Skipped

Phase 7/7: Running 'FLUSH PRIVILEGES'

OK

root /var/lib # mysql.server restart

Shutting down MySQL. SUCCESS! 

Starting MySQL. SUCCESS! 

MariaDB [mysql]> select * from global_priv;

Empty set (0.002 sec)