MySQL-5.6.30-linux-glibc2.5-x86_

uname -a

首先查看系统是32位还是64位操作系统，然后下载相应的mysql版本

https://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz

创建mysql用户：

[root@localhost mysql]# useradd mysql

设置权限：

[root@localhost mysql]# cd /usr/local  
[root@localhost local]# chown -R mysql:mysql mysql/

切换到mysql用户

[root@localhost local]# su - mysql  
[mysql@localhost ~]$ cd /usr/local/mysql/scripts/ 

安装

 yum –y install perl perl-devel
 [mysql@localhost scripts]$ ./mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

配置文件

cd /usr/local/mysql/support-files
cp my-default.cnf /etc/my.cnf
cp mysql.server /etc/init.d/mysql
vim /etc/init.d/mysql          #若mysql的安装目录是/usr/local/mysql,则可省略此步

修改文件中的两个变更值

basedir=/usr/local/mysql
datadir=/usr/local/mysql/data

配置环境变量

vim /etc/profile                                
export MYSQL_HOME=/usr/local/mysql
export PATH=$MYSQL_HOME/bin:$PATH

保存退出

source /etc/profile

启动

[root@localhost mysql]# chkconfig --add mysql  
[root@localhost mysql]# chkconfig mysql on  
[root@localhost mysql]# service mysql start  
Starting MySQL.. SUCCESS!

设置root登录密码

/usr/local/mysql/bin/mysqladmin -u root password 'new-password'

登录

[mysql@localhost ~]$ mysql -uroot -p  
Enter password:  

设置登录权限

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;  
Query OK, 0 rows affected (0.06 sec)  
mysql> FLUSH PRIVILEGES;  
Query OK, 0 rows affected (0.04 sec)