【MySQL报错】ERROR 1558 (HY000): Column count of mysql.user is wrong. Expected 43, found 39.

之前在centos6.4系统安装的是自带的mysql 5.1版本，后来升级到了5.6版本，执行以下命令报错

在网上查找原因说说因为升级不当导致，执行以下命令即可正常执行命令

mysql_upgrade -uroot -p123456

初始化 数据库5.6方法

grant all privileges on *.* to 'root'@'%' identified by 'qaz123' with grant option;

FLUSH   PRIVILEGES;

/etc/init.d/mysqld restart

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