Centos6.5 yum安裝MySQL5.6版本

1.新開的雲服務器，需要檢測系統是否自帶安裝mysql

[root@cpk src]# yum list installed | grep mysql
mysql-libs.x86_64       5.1.71-1.el6    @anaconda-CentOS-201311272149.x86_64/6.5

2.如若系統自帶mysql，需要先移除掉已安裝的版本

yum -y remove mysql-libs.x86_64

3.選擇一個存放文件的目錄下執行

wget http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm

執行該命令後，使用ls可以查看到當前目錄下有一個rpm的安裝包
[cpk@cpk Downloads]$ ls
mysql-community-release-el6-5.noarch.rpm

4.接着執行下面這句命令，執行後在/etc/yum.repos.d/ 這個目錄下多出mysql-community-source.repo和mysql-community.repo

rpm -ivh mysql-community-release-el6-5.noarch.rpm

5.這個時候，可以用yum repolist mysql這個命令查看一下是否已經有mysql可安裝文件

[root@cpk local]# yum repolist all | grep mysql
mysql-connectors-community        MySQL Connectors Community      enabled:    59
mysql-connectors-community-source MySQL Connectors Community - So disabled
mysql-tools-community             MySQL Tools Community           enabled:    65
mysql-tools-community-source      MySQL Tools Community - Source  disabled
mysql55-community                 MySQL 5.5 Community Server      disabled
mysql55-community-source          MySQL 5.5 Community Server - So disabled
mysql56-community                 MySQL 5.6 Community Server      enabled:   453
mysql56-community-source          MySQL 5.6 Community Server - So disabled
mysql57-community-dmr             MySQL 5.7 Community Server Deve disabled
mysql57-community-dmr-source      MySQL 5.7 Community Server Deve disabled

6.安裝mysql 服務器命令（一路yes）：

yum install mysql-community-server

7.安裝完成後，查看下mysql版本

[root@cpk local]# mysql -V
mysql  Ver 14.14 Distrib 5.6.41, for Linux (x86_64) using  EditLine wrapper

8.安裝成功後，需要啓動MySQL服務

service mysqld start(或/etc/init.d/mysqld start)

9.由於mysql剛剛安裝完的時候，root用戶的密碼默認爲空，所以我們需要及時用mysql的root用戶登錄（第一次回車鍵，不用輸入密碼），並修改密碼

mysql -u root
mysql> use mysql;
mysql> update user set password=PASSWORD("這裏輸入root用戶密碼") where User='root';
mysql> flush privileges; (刷新)

10.查看mysql是否自啓動,並且設置開啓自啓動命令

chkconfig --list | grep mysqld
chkconfig mysqld on

至此Centos6.5 數據庫的安裝已完成。