mysql> use mysql
ERROR 1044 (42000): Access denied for user \'root\'@\'localhost\' to database \'mysql\'
mysql> exit
Bye
[root@testtest ~]# service mysqld stop
Stopping mysqld: [ OK ]
[root@testtest ~]# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
[root@testtest ~]# mysql -u root -p -hlocalhost
Enter password:
mysql> use mysql
mysql> SELECT host,user,password,Grant_priv,Super_priv FROM mysql.user;
mysql> UPDATE mysql.user SET Grant_priv=\'Y\', Super_priv=\'Y\' WHERE User=\'root\';
mysql> FLUSH PRIVILEGES;
mysql> GRANT ALL ON *.* TO \'root\'@\'localhost\';
mysql> GRANT ALL ON *.* TO \'root\'@\'cn.cn.cn.cn\';
mysql> GRANT ALL ON *.* TO \'root\'@\'245.245.245.245\';
mysql> GRANT ALL ON *.* TO \'root\'@\'127.0.0.1\';
mysql> FLUSH PRIVILEGES;
mysql> quit
Bye
[root@testtest ~]# service mysqld start
restart Linux/OS
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