mkdir mysql
 40 ll
 41 cd my
 42 cd mysql/
 43 ll
 45 tar -xvf mysql-8.0.19-1.el7.x86_64.rpm-bundle.tar
 46 ll
 47 rpm -ivh mysql-community-common-8.0.19-1.el7.x86_64.rpm --nodeps --force
 48 rpm -ivh mysql-community-libs-8.0.19-1.el7.x86_64.rpm --nodeps --force 
 49 rpm -ivh mysql-community-client-8.0.19-1.el7.x86_64.rpm --nodeps --force
 50 rpm -ivh mysql-community-server-8.0.19-1.el7.x86_64.rpm --nodeps --force
 51 rpm -qa | grep mysql 
 52 mysqld --initialize;
 53 chown mysql:mysql /var/lib/mysql -R;
 54 systemctl start mysqld.service;
 55 systemctl enable mysqld;
 56 cat /var/log/mysqld.log | grep password
 57 mysql -uroot -p
 58 systemctl stop firewalld.service;
 59 systemctl disable firewalld.service;
 60 systemctl mask firewalld.service;
 61 ifconfig

create user 'root'@'%' identified with mysql_native_password by 'root';
grant all privileges on *.* to 'root'@'%' with grant option;
flush privileges;

systemctl stop firewalld.service;
systemctl disable firewalld.service;
systemctl mask firewalld.service;