# pacman -S mariadb # mysql_install_db --user=mysql --basedir=/usr --datadir=/var/lib/mysql # systemctl enable mysqld.service # systemctl start mysqld.service # mysql_secure_installation 遗忘root密码的话，类似windows下： # systemctl stop mysqld.service # mysqld_safe --skip-grant-tables & # mysql -u root mysql mysql> UPDATE mysql.user SET Password=PASSWORD('MyNewPass') WHERE User='root'; mysql> FLUSH PRIVILEGES; mysql> exit