The string appears to be a for a patched FortiGate VM 7.2.1 build 1254 QCow2 image for KVM .
Official Fortinet KVM images follow naming like: FGT_VM64_KVM-v7.2.1.F-build1254-FORTINET.out.kvm.qcow2.zip fgtvm64kvmv721fbuild1254fortinetoutkvmqcow2 patched
When this file is described as it typically implies a modification has been made to the original image provided by Fortinet . Understanding "Patched" Images The string appears to be a for a patched FortiGate VM 7
md5sum /bin/init (compare with known good) Always download official images from the Fortinet Support
: If "patched" refers to a custom-modified image from an unofficial source, it is highly discouraged due to the risk of embedded backdoors. Always download official images from the Fortinet Support Images directory.
Performance-wise, maybe the image is optimized for KVM, leading to better throughput or lower latency compared to other virtualization methods. Features like acceleration for hardware offloading (like Intel VT-d, SR-IOV) might be enabled in the patched version to improve performance.