Arch Linux: install mysql 8
$ sudo pacman -S mysql
$ sudo systemctl start mysql.service
arch linux mysql Table 'mysql.plugin' doesn't exist Please perform the MySQL upgrade procedure
ref:
https://unix.stackexchange.com/questions/669809/problem-running-mysql-in-arch-linux
==>
https://dev.mysql.com/doc/refman/5.7/en/data-directory-initialization.html#data-directory-initialization-overview