If you are searching for a fully functional, perpetual "free" version of Panorama, you need to manage your expectations.

: A second virtual hard drive (e.g., virtiob.qcow2 of 100GB) is often required for logging. Free Evaluation Version

Monitor network traffic through the Application Command Center (ACC) and AppScope. Log Management:

This guide outlines how to set up the Panorama-KVM-10.0.4.qcow2 virtual appliance for use in lab environments like or standard KVM/QEMU. Note that Palo Alto Networks uses a Bring Your Own License (BYOL)