mysql service fails to start/hangs up - timeout (Ubuntu, MariaDB)

Question

I set up my first Ubuntu Server with Ubuntu 16.04, nginx, php7.0, MariaDB, nextcloud and external DynDNS using this tutorial here: Install Nextcloud 9 on Ubuntu 16.04

Answer 1

This last option worked for me (from quazgar). I have Ubuntu 18.10 installed with MariaDB 10.3.13:

$ echo "/usr/sbin/mysqld { }" > /etc/apparmor.d/usr.sbin.mysqld
$ apparmor_parser -v -R /etc/apparmor.d/usr.sbin.mysqld
$ systemctl restart mariadb

I had to use "sudo su" for it to work though.