C:\wamp\bin\mysql\mysql5.5.24\bin>mysql -h localhost -u root -p
Enter password: **********
mysql: Unknown OS character set 'cp720'.
mysql: Switching to the default character set 'latin1'.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.5.24 MySQL Community Server (GPL)

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

mysql> set GLOBAL read_only = false;
Query OK, 0 rows affected (0.00 sec)

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'127.0.0.1';
ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables opt
ion so it cannot execute this statement
mysql>