ERROR 1045 (28000): Access denied for user ‘root’@'localhost’ (using password: NO)

如下解决:

# /etc/init.d/mysql stop
# mysqld_safe –user=mysql –skip-grant-tables –skip-networking &
# mysql -u root mysql
mysql> UPDATE user SET Password=PASSWORD(‘newpassword’) where USER=’root’;
mysql> FLUSH PRIVILEGES;
mysql> quit

kill -9  mysql_pid
# /etc/init.d/mysqld restart
# mysql -uroot -p
Enter password: