$ cat /etc/amazon-linux-release Amazon Linux release 2022 (Amazon Linux) $ sudo yum install openssl-devel $ sudo yum localinstall \ http://dev.mysql.com/get/mysql80-community-release-el8-3.noarch.rpm $ sudo yum install mysql-community-server sudo systemctl enable mysqld sudo systemctl start mysqld sudo cat /var/log/mysqld.log | grep root $ sudo cat /var/log/mysqld.log | grep root 2022-07-11T20:03:58.171561Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: _(naeM:hd0jf mysql> SET PASSWORD = 'ないしょ. 大文字小文字数字記号:要'; mysql> create database mytestdb;