yum 安装mysql. 忘记了密码
不小心忘了mysql密码，系统是rhel5.5 mysql版本5.0.77，yum安装的，简单记录下恢复过程。
[root@localhost ~]# /etc/init.d/mysqld stop
Stopping MySQL: [ OK ]
[root@localhost ~]# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
[root@localhost ~]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.0.77 Source distribution
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| demo |
| mysql |
| ndodb |
| webdns |
+--------------------+
5 rows in set (0.03 sec)
mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
+---------------------------+
| Tables_in_mysql |
+---------------------------+
| columns_priv |
| db |
| func |
| help_category |
| help_keyword |
| help_relation |
| help_topic |
| host |
| proc |
| procs_priv |
| tables_priv |
| time_zone |
| time_zone_leap_second |
| time_zone_name |
| time_zone_transition |
| time_zone_transition_type |
| user |
+---------------------------+
17 rows in set (0.00 sec)
mysql> UPDATE user SET Password=PASSWORD('123456') where USER='root';
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3 Changed: 3 Warnings: 0
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
mysql> QUIT
Bye
[root@localhost ~]# /etc/init.d/mysqld restart
Starting MySQL: [ OK ]
[root@localhost ~]# mysql -uroot -p123456
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 5.0.77 Source distribution
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql>
