Do you have your Ubuntu installed into your CubieBoard?
Run this command in a Terminal (it'll be as for your mySQL password):sudo apt-get install owncloud davfs2 mysql-server
Create a database in mySQL:https://your-domain/phpmyadmin
Give privilegies to your owncloud data directory:sudo chown www-data:www-data -R /path_data_owncloud
Enable SSL:sudo ufw allow https
sudo a2enmod ssl
a2ensite default-ssl
sudo a2ensite default-ssl
Visit your domain as:https://your-domain/owncloud
or (better with https)https://your-domain/owncloud
You can connect with Nautilus on your Ubuntu desktop too with this address:`your-domain`/owncloud/remote.php/webdav/
Use that address for your Android too with ES File Explorer.
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