linux安装mysql(5.1.73)

1.删除mysql

    yum remove  mysql mysql-server mysql-libs mysql-server;

    find / -name mysql 将找到的相关东西delete掉(rm -rf /var/lib/mysql)；

    rpm -qa|grep mysql(查询出来的东东yum remove掉)

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

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

yum update    yum install mysql-server(这里有报错 ***  Requires: libc.so.6(GLIBC_2.17)(64bit) ***)

解决: 

   3.1、yum install glibc.i686

   3.2、yum list libstdc++*

   3.3、#cd /etc/yum.repos.d/
        #sudo vi mysql-community.repo
        找到mysql-56-community
        将enable置为0 enable=0
        重新安装mysql   sudo yum install mysql-server

4.查看mysql状态---- /etc/rc.d/init.d/mysqld status

启动mysql----/etc/rc.d/init.d/mysqld start 

登录-----mysql -u root -p 空密码

修改密码  use mysql;    UPDATE user SET password=PASSWORD('123456') WHERE user='root';

刷新----flush privileges; 退出  exit;

5.开放3306端口， vi /etc/sysconfig/iptables

添加-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT

重启 service iptables restart

6.可能远程无法连接

登录 use mysql;

查询root和主机的关系 select Host,User from user;

修改update user set Host='%' where User ='root' limit 3; ----%表示任意

这里可能会报错----ERROR 1062 (23000): Duplicate entry '%-root' for key 'PRIMARY'

直接跳过，执行flush privileges; 退出

重启mysql---- service mysqld restart(我没有重启也可以访问了)。

相关参考:https://www.cnblogs.com/nucdy/p/5784809.html

http://www.runoob.com/mysql/mysql-install.html

https://blog.csdn.net/qq_32851561/article/details/81146314

https://blog.csdn.net/hello_world_qwp/article/details/79544162