Fortinet provides .qcow2 images so administrators can directly import and deploy FortiGate VMs on KVM without conversion.

: Create and attach a second empty virtual disk (e.g., 30GB) to the VM. The FortiGate will automatically format this for logging upon boot.

Features:

When deploying this specific version, keep these documented behaviors and issues in mind: FortiGate VM on Linux KVM Data Sheet - Fortinet

The 64 in fgtvm64 indicates a 64-bit image, required for modern KVM hosts.

This specific filename, fgtvm64kvmv723fbuild1262fortinetoutkvmqcow2 , refers to a FortiGate-VM64 deployment image for the hypervisor, specifically FortiOS 7.2.3 build 1262