mysql8 CentOS7 简要安装说明

1. 卸载mariadb 

rpm -qa |grep mariadb |xargs yum remove -y
比较简单的卸载办法. 

2. 安装所有的rpm包.

yum localinstall *.rpm

 3. 数据库初始化

#初始化
mysqld --initialize
#设置服务开机启动
systemctl enable mysqld && systemctl restart mysqld

4. 设置密码

# 获取随机密码
cat /var/log/mysqld.log |grep password

然后 
mysql -uroot -p
#输入密码 进行登录
#修改原有密码:
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';
#创建网络可以登录的用户和密码:
create user 'root'@'%' identified with mysql_native_password by 'root';
grant all privileges on *.* to 'root'@'%' with grant option;
flush privileges;

5. 重启一下机器进行验证