一、安装yum源自带MYSQL5.1
1.查看yum源上的mysql版本
命令：#yum list mysql-*
已安装的软件包
mysql.x86_64 5.1.73-3.el6_5 @anaconda-CentOS-201410241409.x86_64/6.6
mysql-devel.x86_64 5.1.73-3.el6_5 @anaconda-CentOS-201410241409.x86_64/6.6
mysql-libs.x86_64 5.1.73-3.el6_5 @anaconda-CentOS-201410241409.x86_64/6.6
可安装的软件包
MySQL-python.x86_64 1.2.3-0.3.c1.1.el6 base
mysql-bench.x86_64 5.1.73-3.el6_5 base
mysql-connector-java.noarch1:5.1.17-6.el6 base
mysql-connector-odbc.x86_645.1.5r1144-7.el6 base
mysql-devel.i686 5.1.73-3.el6_5 base
mysql-embedded.i686 5.1.73-3.el6_5 base
mysql-embedded.x86_64 5.1.73-3.el6_5 base
mysql-embedded-devel.i686 5.1.73-3.el6_5 base
mysql-embedded-devel.x86_645.1.73-3.el6_5 base
mysql-libs.i686 5.1.73-3.el6_5 base
mysql-server.x86_64 5.1.73-3.el6_5 base
mysql-test.x86_64 5.1.73-3.el6_5 base
从上面可得知自带的yum源里所使用的是mysql5.1.73的版本
2.安装mysql以及所有组建
命令：# yum install -y mysql-*
......................中间省略知自动安装过程
3.查看是否安装成功
# rpm -q mysql-*
mysql-5.1.73-3.el6_5.x86_64
4.启动mysql数据库服务，并设置root
# service mysqld start
.......中间省略数行启动字符
正在启动 mysqld： [确定]
# mysqladmin -uroot password123456
5.进入mysql数据库并新建数据库并录入数据
# mysql -p
Enter password:
mysql>
（1）显示当前数据库
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| test |
+--------------------+
3 rows in set (0.00 sec)
（2）创建一个名为ceshi的数据库
mysql> create database ceshi;
Query OK, 1 row affected (0.00 sec)
（3）创建表并录入一条信息
mysql> use ceshi;
Database changed
mysql> create table cstable (name varchar(20),sex char(1),birth date);
Query OK, 0 rows affected (0.16 sec)
mysql> show tables;
+-----------------+
| Tables_in_ceshi |
+-----------------+
| cstable |
+-----------------+
1 row in set (0.00 sec)
6.退出mysql数据库
mysql> \q
到此全部前期工作已准备完毕，开始升级mysql5.6
一、升级前先备份出之前我们新建的数据库，使用到的命令
[root@yueyue ~]#mysqldump -uroot -p ceshi > /shengji/ceshi.sql
Enter password:
[root@yueyue ~]# ls/shengji/
ceshi.sql
[root@yueyue ~]#
二、按照以上方法备份好数据库以后，将原有mysql5.1数据库版本卸载
# yum remove -y mysql-*
........省略卸载过程
# rm -rf /var/lib/mysql #####必须删除不然重装没发启动数据库
三、去mysql官方网站下载mysql5.6 64位的rpm包
# ls /shengji
mysql-community-release-el6-5.noarch.rpm
为了解决本地源的应用程序间相互依赖关系，须执行一下命令
# cd /shengji
# yum localinstall-y mysql-community-release-el6-5.noarch.rpm
...............中间省略安装过程多个字符
可以通过下面的命令来确认这个yum源被成功添加，可执行以下命令：
# yum repolistenabled | grep "mysql.*-community.*"
mysql-connectors-community MySQL Connectors Community 14
mysql-tools-community MySQL Tools Community 23
mysql56-community MySQL 5.6 CommunityServer 146
[root@yueyue shengji]# yum -y install mysql-community-server
[root@yueyue shengji]# mysql -V
mysql Ver 14.14 Distrib 5.6.24, for Linux (x86_64) using EditLine wrapper
[root@yueyue ~]# service mysqld start
正在启动 mysqld： [确定]
[root@yueyue ~]#
[root@yueyue ~]# ps -ef |grep mysql
root 17338 1 0 14:14 pts/2 00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --socket=/var/lib/mysql/mysql.sock --pid-file=/var/run/mysqld/mysqld.pid --basedir=/usr --user=mysql
mysql 17542 17338 2 14:14 pts/2 00:00:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/log/mysqld.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/lib/mysql/mysql.sock
root 17604 14460 0 14:15 pts/2 00:00:00 grep mysql
[root@yueyue ~]# mysqladmin -u root password “123456”
Warning: Using a password on the command line interface can be insecure.
[root@yueyue ~]# mysql -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 5.6.24 MySQL Community Server (GPL)
Copyright (c) 2000, 2015, 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>
原文地址：http://29075345.blog.51cto.com/5665996/1655467
