CentOS6.4下安装MySQL5.6.10后root无法登陆MySQL

时间:2022-09-22 12:30:08

 启动MySQL后root无法登陆

[root@localhost mysql]# /usr/bin/mysql -u root -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

解决办法:
    1.停止MySQL  
      [root@localhost mysql]# service mysql stop
    2.启动MySQL安全模式
      [root@localhost mysql]# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
      mysql -u root mysql
    3.更改root密码
      
mysql> UPDATE user SET Password=PASSWORD('sa') where USER='root';Query OK, 4 rows affected (0.01 sec)Rows matched: 4  Changed: 4  Warnings: 0 mysql> flush privileges;Query OK, 0 rows affected (0.00 sec) mysql> quitBye

 
    4.重新登录后,无法执行show databases;
     
 mysql> show databases;ERROR 1820 (HY000): You must SET PASSWORD before executing this statement

 
    5.重新设置密码
     
 mysql> SET PASSWORD = PASSWORD('sa');Query OK, 0 rows affected (0.00 sec) mysql> show databases;+--------------------+| Database           |+--------------------+| information_schema || mysql              || performance_schema || test               |+--------------------+4 rows in set (0.01 sec)