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.
https://www.odoo.com/documentation/10.0/setup/install.html
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
localhost:8069
How to install Odoo – Open Source ERP and CRM