ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'

ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'

新装的mysql，访问mysql数据库是遇到问题：ERROR 1044 (42000): Access denied for user ​​''@'localhost'​​to database 'mysql'，

[root@dzmysql-5.1.61]# mysql -u root -p Enter password: Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.1.61 Source distribution

Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners.

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

mysql> use mysql ERROR 1044 (42000): Access denied for user ​​​''@'localhost'​​ to database 'mysql'

mysql>

最后发现解决方案是：

打开my.ini,在

[mysqld]skip-external-lockingskip-name-resolve#skip-grant-tables

其中skip-grant-tables跳过权限验证是被注释掉的，去掉注释，重新启动mysql：

[root@aaa libexec]# /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/data0/mysqldata --user=mysql --log-error=/data0/mysqldata/mysql-error.log --open-files-limit=20000 --pid-file=/data0/mysqldata/dzcom-B15-5-3-36.pid --socket=/tmp/mysql.sock --port=3306

[root@dzmysql-5.1.61]# mysql -u root -p Enter password: Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.1.61-log Source distribution

Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners.

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

mysql> use mysql Database changed mysql>grant all privileges on *.* to root@localhost identified by 'mysql'

然后重新登录 ok,成功！

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