卸载centos自带的mariadb rpm -qa mariadb* rpm -e *** --nodeps 下载mysql 8.0的rpm完整包 wget -O /tmp/mysql-8.0.11-1.el7.x86_64.rpm-bundle.tar https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.11-1.el7.x86_64.rpm-bundle.tar 解压出rpm包 cd /tmp/ tar xvf mysql-8.0.11-1.el7.x86_64.rpm-bundle.tar yum安装一下net-tools库、perl yum -y install net-tools* yum -y install perl 新建用户和用户组 groupadd mysql useradd -g mysql mysql 依次编译安装 rpm -ivh mysql-community-common-8.0.11-1.el7.x86_64.rpm rpm -ivh mysql-community-libs-8.0.11-1.el7.x86_64.rpm rpm -ivh mysql-community-client-8.0.11-1.el7.x86_64.rpm rpm -ivh mysql-community-server-8.0.11-1.el7.x86_64.rpm 初始化mysql mysqld --initialize --user=mysql 启动mysql systemctl start mysqld 查看生成的密码 vim /var/log/mysqld.log #k7jIhWyXDbj 登陆mysql mysql -u root -p 修改密码： ALTER USER ‘root‘@‘localhost‘ IDENTIFIED BY ‘123456‘; flush privileges; 至此MySQL 8.0 安装完成