In terms of the operating system you can deploy, a license can be one of two types:
Linux is considered as a server operating system. See also the complete list of supported server and workstation operating systems.
If Acronis Snap Deploy 4 fails to identify the type of operating system, the operating system is considered as a workstation operating system.
When setting up a deployment operation, you can choose whether a server license can be automatically used instead of a workstation license for deploying a workstation operating system.