云服务器centos7安装mysql8

1.先去官网准备好几个安装包：

 2.tar -xvf mysql-8.0.26-1.el8.x86_64.rpm-bundle.tar

 3.可能需要卸载系统中自带的mariadb

rpm -qa|grep mariadb

 rpm -e --nodeps mariadb-connector-c-3.1.11-2.oc8.1.x86_64

rpm -e --nodeps mariadb-connector-c-config-3.1.11-2.oc8.1.noarch

 4.rpm -ivh mysql-community-common-8.0.26-1.el8.x86_64.rpm

 5.rpm -ivh mysql-community-client-plugins-8.0.26-1.el8.x86_64.rpm

 6.rpm -ivh mysql-community-libs-8.0.26-1.el8.x86_64.rpm

 7.rpm -ivh mysql-community-client-8.0.26-1.el8.x86_64.rpm

 8.rpm -ivh mysql-community-server-8.0.26-1.el8.x86_64.rpm

 9.mysqld --initialize --console

 10.chown -R mysql:mysql /var/lib/mysql/

 11. systemctl start mysqld

 12.cat /var/log/mysqld.log|grep localhost

 13.mysql -uroot -p

 14.修改密码

alter user 'root'@'localhost' identified by 'amz@2023';

 15.use mysql;

ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'amz@2023';

grant all privileges on *.* to 'root'@'%';

flush privileges;