Sometimes the raw download needs conversion to ensure proper disk bus compatibility.
Here’s a detailed, long-form post suitable for a tech blog, Reddit (r/networking, r/fortinet), or a community forum like the Fortinet Cookbook or Medium. Diving Deep into fortios.qcow2 : The Heart of Fortinet Virtualization fortios.qcow2
A Linux machine with libvirt and virt-manager installed. Sometimes the raw download needs conversion to ensure