yum安装mysql后更改数据库目录,日志目录，binglog日志目录

1、停止mysqld服务

[root@mysql ~]# service mysqld stop

2、创建数据库目录、日志目录、二进制日志目录

[root@mysql ~]# mkdir /u01/mysql/{mysqldata,binglog,log} -p

[root@mysql u01]# ls
mysql
[root@mysql u01]# ls mysql/
binlog  log  mysqldata

3、拷贝数据库文件

[root@mysql u01]# cp -a /var/lib/mysql/* /u01/mysql/mysqldata/

4、修改my.cnf

[root@mysql u01]# vim /etc/my.cnf

5、连接mysql的socket文件到/var/lib/mysql/(利于客户端连接)

[root@mysql ~]# ln -s /u01/mysql/mysqldata/mysql.sock /var/lib/mysql/

6、修改mysql启动服务文件

[root@mysql ~]# vim /etc/init.d/mysqld

7、启动mysqld，完成数据库目录更改

[root@mysql ~]# service mysqld start

8、测试连接数据库

[root@mysql ~]# mysql -uroot -p
Enter password: 
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[root@Oem ~]# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1803
Server version: 5.1.73-log Source distribution

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

mysql> 
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| test               |
| test_dwh           |
| zabbix             |
| zabbix1            |
| zabbix2            |
+--------------------+
7 rows in set (0.00 sec) 数据库正常，OK