$ mysql_upgrade

Phase 1/7: Checking and upgrading mysql database

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.innodb_index_stats                           OK

mysql.innodb_table_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

mysqlcheck: Got error: 1102: Incorrect database name '#mysql50#.rocksdb' when selecting the database

FATAL ERROR: Upgrade failed

$ rpm -qa | grep MariaDB

MariaDB-connect-engine-10.2.7-1.fc25.x86_64

MariaDB-tokudb-engine-10.2.7-1.fc25.x86_64

MariaDB-rocksdb-engine-10.2.7-1.fc25.x86_64

MariaDB-common-10.2.7-1.fc25.x86_64

MariaDB-cracklib-password-check-10.2.7-1.fc25.x86_64

MariaDB-backup-10.2.7-1.fc25.x86_64

MariaDB-compat-10.2.7-1.fc25.x86_64

MariaDB-client-10.2.7-1.fc25.x86_64

MariaDB-server-10.2.7-1.fc25.x86_64