sudo apt update
sudo apt install mysql-server
sudo systemctl start mysql.service
sudo mysql
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
mysql -u root -p
ALTER USER 'root'@'localhost' IDENTIFIED WITH auth_socket;
https://www.digitalocean.com/community/tutorials/how-to-install-mysql-on-ubuntu-20-04