如何在centos6.8中安装mysql5.5

 /etc/init.d/mysql

本来想安装mysql5.6或者5.7的，无奈，总是安装出错，所以改为安装5.5

安装步骤

1.确保把yum的mysql源删除干净

Code:

yum clean all

Code:

yum clean metadata

Code:

yum clean dbcache

Code:

yum update

2.安装mysql 5.5

 wget http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-server-5.5.48-1.el6.x86_64.rpm
 wget http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-client-5.5.48-1.el6.x86_64.rpm
 wget http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-devel-5.5.48-1.el6.x86_64.rpm
 rpm -ivh MySQL-server-5.5.48-1.el6.x86_64.rpm
 rpm -ivh MySQL-client-5.5.48-1.el6.x86_64.rpm
 rpm -ivh MySQL-devel-5.5.48-1.el6.x86_64.rpm

3.设置root可以远程登录

1.启动mysql

 /etc/init.d/msyql start

2.设置mysql的root密码

 /usr/bin/mysqladmin -u root password '123456'

3.设置远程登录

a本地登录mysql

mysql -u root –p

  b update user set host ='%' where user= 'root';

c：flush privileges