Upgrade Owncloud to Nextcloud the quick way (with included surprises)

In this video I am upgrading an installation of Owncloud to Nextcloud on a Centos virtual machine. I have seen another video where they performed the upgrade by using Filezilla to change the files, but this took a long time, so I was then motivated to do a demonstartion of how to do it the easy way, so that people will not think that it is a long or difficult process. I did come across some surprises along the way, so it will be worth giving this a watch if you are deciding to make the jump from Owncloud to Nextcloud.

Here are the links and commands that were used in the video:

https://blog.remirepo.net/pages/Config-en

https://blog.remirepo.net/post/2016/06/24/PHP-version-5.5.37-5.6.23-and-7.0.8

systemctl start mariadb.service

systemctl restart httpd.service