CentOS7的mysql5.7-rpm.bundle方式安装

下载地址

https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.19-1.el6.x86_64.rpm-bundle.tar

查询mariadb的版本号

rpm -qa|grep mariadb

如显示出：mariadb-libs-5.5.56-2.el7.x86_64，则说明系统使用的是该版本，可以对该版本进行卸载

卸载mariadb

sudo rpm -e mariadb-libs-5.5.56-2.el7.x86_64 --nodeps

解压mysql

tar xvf  mysql-5.7.19-1.el6.x86_64.rpm-bundle.tar

安装mysql

建议按顺序安装：common --> libs --> clients --> server

rpm -ivh mysql-community-libs-compat-5.7.19-1.el6.x86_64.rpm --nodeps
rpm -ivh mysql-community-common-5.7.19-1.el6.x86_64.rpm --nodeps
rpm -ivh mysql-community-libs-5.7.19-1.el6.x86_64.rpm --nodeps
rpm -ivh mysql-community-client-5.7.19-1.el6.x86_64.rpm --nodeps
rpm -ivh mysql-community-server-5.7.19-1.el6.x86_64.rpm --nodeps

# 查看mysql安装到哪里了
which mysqld

关闭防火墙

setenforce 0
systemctl stop firewalld.service 
systemctl disable firewalld.service

启动mysql

service mysqld start

查看root初始密码

more /var/log/mysqld.log |grep password 

[Note] A temporary password is generated for root@localhost: OgoSH?xjg1hb

登录

mysql -uroot -p

修改密码规则以及修改密码

mysql>set global validate_password_length=4;
mysql>set global validate_password_policy=0;
mysql>set password = password('root');

给任意IP授权

mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION;

mysql>FLUSH PRIVILEGES;