manjaromysql安装

sudo pacman -S mysql

正在安装 mysql-clients (8.0.11-1)...
正在安装 mysql (8.0.11-1)...
:: You need to initialize the MySQL data directory prior to starting
   the service. This can be done with mysqld --initialize command, e.g.:
   mysqld --initialize --user=mysql --basedir=/usr --datadir=/var/lib/mysql
:: Additionally you should secure your MySQL installation using
   mysql_secure_installation command after starting the mysqld service

mysqld --initialize --user=mysql --basedir=/usr --datadir=/var/lib/mysql

sudo systemctl status mysqld

sudo systemctl enable mysqld
sudo systemctl start mysqld