Odoo is one of the best ERP systems I’ve ever seen.
According to the link bellow, there are many ways to install and test it.
For may needs the prefer way to install in on Ubuntu server is
sudo wget -O – https://nightly.odoo.com/odoo.key | apt-key add –
sudo echo “deb http://nightly.odoo.com/10.0/nightly/deb/ ./” >> /etc/apt/sources.list.d/odoo.list
sudo apt-get update && apt-get install odoo
Then open in the browser
How to install Odoo – Open Source ERP and CRM