下载
下载Mysql：mysql-8.0.43-1.el7.x86_64.rpm-bundle.tar
下载链接：
https://downloads.mysql.com/archives/community/
注意：
- Centos对应el7版本
- 下载rpm版本
清理
查看是否安装了Mysql版本
yum list installed mysql
rpm –qa|grep mysql*
如果安装了请自行卸载
查看是否安装了MariaDB
rpm -qa|grep mariadb
如果安装了MariaDB，则进行删除操作
rpm -e --nodeps mariadb-libs
安装
解压文件
tar -xf mysql-8.0.43-1.el7.x86_64.rpm-bundle.tar
按顺序安装
rpm -ivh mysql-community-common-8.0.43-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-plugins-8.0.43-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-8.0.43-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-compat-8.0.43-1.el7.x86_64
rpm -ivh mysql-community-devel-8.0.43-1.el7.x86_64
rpm -ivh mysql-community-client-8.0.43-1.el7.x86_64.rpm
rpm -ivh mysql-community-icu-data-files-8.0.43-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-8.0.43-1.el7.x86_64.rpm
如果缺少依赖项，可能需要安装
yum install glibc.i686
yum install libaio
yum install numactl
启动服务器
systemctl start mysqld
查看临时密码
grep 'temporary password' /var/log/mysqld.log