# mysql_upgrade -p --verbose

Enter password:

Looking for 'mysql' as: mysql

Looking for 'mysqlcheck' as: mysqlcheck

MySQL upgrade detected

Phase 1/6: Checking and upgrading mysql database

Warning: Using a password on the command line interface can be insecure.

# Connecting to localhost...

# Disconnecting from localhost...

mysql.column_stats                                 OK

mysql.columns_priv                                 OK

mysql.db                                           OK

mysql.event                                        OK

mysql.func                                         OK

mysql.general_log                                  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.ndb_binlog_index                             OK

mysql.plugin                                       OK

mysql.proc                                         OK

mysql.procs_priv                                   OK

mysql.proxies_priv                                 OK

mysql.roles_mapping                                OK

mysql.servers                                      OK

mysql.slow_log                                     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 2/6: Fixing views from mysql

Warning: Using a password on the command line interface can be insecure.

mysqlcheck: unknown variable 'process-views=UPGRADE_FROM_MYSQL'

FATAL ERROR: Upgrade failed

# mysql_upgrade  --version

mysql_upgrade  Ver 1.4 Distrib 10.0.22-MariaDB, for Linux (x86_64)

#mysqlcheck  --version

mysqlcheck  Ver 2.5.1 Distrib 5.6.27, for Linux (x86_64)