[RESOLVED]: ERROR 1558 (HY000): Column count of mysql.user is wrong. Expected 43, found 42. Created with MySQL 50556, now running 50640

In this article, we will discuss about the issue which we faced after mysql database server installation.

Recently there was a reqirement to install mysql server and to create few mysql databases. As per requirement, we created the databases but during user creation we faced the below error.

ERROR 1558 (HY000): Column count of mysql.user is wrong. Expected 43, found 42. Created with MySQL 50556, now running 50640. Please use mysql_upgrade to fix this error.

Below are the error logs and sequence of steps we followed to resolve this error:

[oradb@orahowdb mysql]$ mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.6.40 MySQL Community Server (GPL)

Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
|oradb             |
| mysql              |
| performance_schema |
+--------------------+
6 rows in set (0.00 sec)

mysql> use oradb
Database changed
mysql>

mysql> create user orahow identified by '####';
ERROR 1558 (HY000): Column count of mysql.user is wrong. Expected 43, found 42. Created with MySQL 50556, now running 50640. Please use mysql_upgrade to fix this error.
mysql>

mysql> exit

[oradb@orahowdb mysql]$
[oradb@orahowdb mysql]$ mysql_upgrade -u root -p
Enter password:
Looking for 'mysql' as: mysql
Looking for 'mysqlcheck' as: mysqlcheck
Running 'mysqlcheck' with connection arguments: '--port=3306' '--socket=/DBdata/mysql/mysql.sock'
Warning: Using a password on the command line interface can be insecure.
Running 'mysqlcheck' with connection arguments: '--port=3306' '--socket=/DBdata/mysql/mysql.sock'
Warning: Using a password on the command line interface can be insecure.
mysql.columns_priv                                 OK
mysql.db                                           OK
mysql.event                                        OK
mysql.func                                         OK
mysql.general_log                                  OK
mysql.help_category                                OK
mysql.help_keyword                                 OK
mysql.help_relation                                OK
mysql.help_topic                                   OK
mysql.host                                         OK
mysql.ndb_binlog_index                             OK
mysql.plugin                                       OK
mysql.proc                                         OK
mysql.procs_priv                                   OK
mysql.proxies_priv                                 OK
mysql.servers                                      OK
mysql.slow_log                                     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
Running 'mysql_fix_privilege_tables'...
Warning: Using a password on the command line interface can be insecure.
Running 'mysqlcheck' with connection arguments: '--port=3306' '--socket=/DBdata/mysql/mysql.sock'
Warning: Using a password on the command line interface can be insecure.
Running 'mysqlcheck' with connection arguments: '--port=3306' '--socket=/DBdata/mysql/mysql.sock'
Warning: Using a password on the command line interface can be insecure.
OK
Could not create the upgrade info file '/DBdata/mysql/mysql_upgrade_info' in the MySQL Servers datadir, errno: 13

[oradb@orahowdb mysql]$ mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 13
Server version: 5.6.40 MySQL Community Server (GPL)

Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.


mysql>
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| oradb             |
| mysql              |
| performance_schema |
+--------------------+
6 rows in set (0.00 sec)

mysql>
mysql>
mysql> use oradb;
Database changed

mysql>
mysql> create user orahow identified by '####';
Query OK, 0 rows affected (0.00 sec)