centos7 安装mysql8

1.下载mysql

wget https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.32-1.el7.x86_64.rpm-bundle.tar
我的下载路径是 /root/mySoftware

2.安装mysql

创建mysql文件夹
mkdir /usr/local/mysql
将下载好的mysql mv到mysql下
mv mysql-8.0.32-1.el7.x86_64.rpm-bundle.tar  /usr/local/mysql/
解压
tar -xvf mysql-8.0.32-1.el7.x86_64.rpm-bundle.tar
安装mysql-community-common
rpm -ivh mysql-community-common-8.0.32-1.el7.x86_64.rpm --nodeps --force
安装mysql-community-libs
rpm -ivh mysql-community-libs-8.0.32-1.el7.x86_64.rpm --nodeps --force
安装mysql-community-client
rpm -ivh mysql-community-client-8.0.32-1.el7.x86_64.rpm  --nodeps --force
安装mysql-community-server
rpm -ivh mysql-community-server-8.0.32-1.el7.x86_64.rpm --nodeps --force
查看是否安装完（4个）
rpm -qa | grep mysql
初始化mysql
mysqld --initialize;
chown mysql:mysql /var/lib/mysql -R;
systemctl start mysqld.service;
systemctl  enable mysqld;
命令查看数据库的临时密码
cat /var/log/mysqld.log | grep password 
登陆mysql，输入临时密码
mysql -uroot -p
设置密码
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';
推出，并重新登陆
exit; 
mysql -uroot -proot