CentOS6.x下源码安装MySQL5.5

1. 更新yum源：http://www.cnblogs.com/vurtne-lu/p/7405931.html

2. 卸载原有的mysql数据库

[root@zabbix ~]# yum -y remove mysql mysql-server mysql-libs compat-mysql51
[root@zabbix ~]# rm -rf /var/lib/mysql   
[root@zabbix ~]# rm /etc/my.cnf
[root@zabbix ~]# rpm -qa|grep mysql #如果还能查询出来mysql文件，继续删除，没有的话就说明mysql已经彻底删除了

3. 安装依赖包

yum -y install cmake gcc* ncurses-devel mysql-devel net-snmp-devel

4. 添加mysql用户和用户组，创建mysql的数据目录

[root@zabbix ~]# groupadd mysql
[root@zabbix ~]# mkdir -pv /data/mysql
[root@zabbix ~]# useradd -r -g mysql -d /data/mysql -s /sbin/nologin mysql
[root@zabbix ~]# chown -R mysql.mysql /data/mysql

5. 安装MySQL

[root@zabbix opt]# wget http://dev.mysql.com/get/Downloads/MySQL-5.5/mysql-5.5.49.tar.gz
[root@zabbix opt]# tar -zxvf mysql-5.5.49.tar.gz
[root@zabbix opt]# cd mysql-5.5.49
[root@zabbix mysql-5.5.49]# cmake -DCMAKE_INSTALL_PREFIX=/usr/local/product/mysql-5.5.49 -DDEFAULT_CHARSET=utf8 -DENABLED_LOCAL_INFILE=1 -DMYSQL_DATADIR=/data/mysql -DWITH_EXTRA_CHARSETS=all -DWITH_READLINE=1 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DMYSQL_TCP_PORT=3306 -DDEFAULT_COLLATION=utf8_general_ci
[root@zabbix mysql-5.5.49]# make && make install
[root@zabbix mysql-5.5.49]# ln -s /usr/local/product/mysql-5.5.49 /usr/local/mysql   #添加软链接
[root@zabbix mysql-5.5.49]# chown -R mysql.mysql /usr/local/mysql    #给软链接添加所属用户和组
[root@zabbix mysql-5.5.49]# cd /usr/local/mysql/support-files/
[root@zabbix support-files]# cp my-medium.cnf /data/mysql/my.cnf    #拷贝mysql配置文件

6. 将mysql添加service管理

[root@zabbix support-files]# cp /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysqld
[root@zabbix support-files]# chmod +x /etc/rc.d/init.d/mysqld

7. 初始化数据库

[root@zabbix support-files]# cd /usr/local/mysql/scripts
[root@zabbix scripts]# ./mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/data/mysql/

8. 修改MySQL配置文件my.cnf中的数据目录

[root@zabbix scripts]# vim /etc/my.cnf
datadir=/data/mysql/       #在[mysqld]下修改

9. 启动mysql

[root@zabbix ~]# /etc/init.d/mysqld start
Starting MySQL... SUCCESS!
或者
[root@zabbix ~]# service mysqld start
Starting MySQL... SUCCESS!

10. 查看mysql版本

[root@yeebian scripts]# mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.49-log Source distribution

Copyright (c) 2000, 2013, 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> 

 注：如果在执行mysql命令时出现以下错误：

[root@zabbix ~]# mysql
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

解决方法：

[root@zabbix ~]# ln -s /tmp/mysql.sock /var/lib/mysql/

11. 建库、添加权限及用户密码

mysql> UPDATE mysql.user SET Password=PASSWORD('zabbix') where USER='root';     #添加root用户密码
mysql> create database zabbix default charset utf8;    #创建zabbix数据库并赋予utf8字符集；
mysql> grant all privileges on zabbix.* to zabbix@'localhost' identified by 'zabbix';      #将数据库zabbix下的所有权限赋予用户zabbix，密码为zabbix
mysql> flush privileges;         #刷新MySQL的系统权限相关表
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
| zabbix |
+--------------------+
5 rows in set (0.00 sec)