CentOS8 yum方式安装mysql8.0

1，使用rpm -qa | grep mysql命令，检查系统是否已经安装了mysql，如果已经安装mysql，需要先卸载。

2，添加在线mysql源

vim /etc/yum.repos.d/mysql.repo

将下面的内容添加到mysql源

# Enable to use MySQL 8.0
[mysql80-community]
name=MySQL 8.0 Community Server
baseurl=http://repo.mysql.com/yum/mysql-8.0-community/el/8/x86_64/
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

3，安装mysql

yum module disable mysql

yum update

yum install -y mysql-community-common mysql-community-libs mysql-community-client mysql-community-server mysql-community-devel

4，启动mysql服务  (停止mysql服务的命令是：systemctl stop mysqld.service)

systemctl start mysqld.service

5，查看mysql状态

systemctl status mysqld.service

6，将mysql设置为开机自启

systemctl enable mysqld.service

7，登录mysql的时候需要设置密码：首先生成随机密码

grep 'temporary password' /var/log/mysqld.log

8，登录mysql

mysql -uroot -p

然后输入刚才收成的随机密码

9，接下来我们要修改一下密码

alter user 'root'@'localhost' identified by 'abc@123456';

重新登录

mysql就安装完成了