centos6.5 yum安装MySQL5.6

#useradd mysql
#passwd mysql
#chmod u+w /etc/sudoers
#vi /etc/sudoers
mysql ALL=(ALL) ALL

或：
# yum install http://repo.mysql.com//mysql57-community-release-el6-8.noarch.rpm[/code] 
选择版本

查看可安装的mysql版本

[mysql@mysql-1 ~]$ yum repolist enabled | grep "mysql.*-community.*"
mysql-connectors-community MySQL Connectors Community 21
mysql-tools-community MySQL Tools Community 35
mysql57-community MySQL 5.7 Community Server 82


如果我们要选择版本，可以先执行下面这个命令查看一下有哪些版本

[mysql@mysql-1 ~]$ yum repolist all | grep mysql


选择版本，启用5.6版本的，禁用5.7版本子仓库

[mysql@mysql-1 ~]$ sudo yum-config-manager --enable mysql56-community
[mysql@mysql-1 ~]$ sudo yum-config-manager --disable mysql57-community


或者
编辑/etc/yum.repos.d/mysql-community.repo文件
enabled=0 表示禁用
比如要安装5.7版本的mysql，要确定5.6的enabled=0，5.7的enabled=1，一次保证只启用一个子仓库

查看可安装的mysql版本

[mysql@mysql-1 ~]$ yum repolist enabled | grep "mysql.*-community.*"
mysql-connectors-community MySQL Connectors Community 21
mysql-tools-community MySQL Tools Community 35
mysql56-community MySQL 5.6 Community Server 248


安装

[mysql@mysql-1 ~]$ sudo yum install mysql-community-server


启动数据库

[root@mysql-1 mysql]# /usr/bin/mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MySQL to secure it, we'll need the current
password for the root user.  If you've just installed MySQL, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none):    ----输入root密码（默认为空）：
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.

Set root password? [Y/n] y             ----是否要修改root密码：
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
... Success!

By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
... Success!

By default, MySQL comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] n
... skipping.

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
... Success!

All done!  If you've completed all of the above steps, your MySQL
installation should now be secure.

Thanks for using MySQL!

Cleaning up...
[root@mysql-1 mysql]#


View Code

[root@mysql-1 mysql]#  service mysqld status
mysqld (pid  3097) 正在运行...