I understand you're looking for information about a Fortinet VM image file, but I want to be careful here. That filename appears to be a FortiGate virtual machine image (version v7.2.3, build 1262) for KVM – specifically a qcow2 format file.
| Component | Meaning |
|-----------|---------|
| fgt-vm64 | FortiGate Virtual Machine (64-bit) |
| kvm | Kernel-based Virtual Machine (KVM hypervisor) |
| v7.2.3 | FortiOS version 7.2.3 |
| f-build1262 | Internal build number 1262 |
| qcow2 | QEMU disk image format |
Unlike RAW or VMDK (VMware) formats, QCOW2 provides specific advantages for KVM-based environments: I understand you're looking for information about a
Before you download anything, understand exactly what you are getting:
| Token | Meaning | | :--- | :--- | | fgt | FortiGate (the NGFW/VPN appliance) | | vm64 | 64-bit virtual machine (not ARM, not 32-bit) | | kvm | Kernel-based Virtual Machine (Linux native hypervisor) | | v7.2.3 | Major feature release 7.2, patch 3 | | f-build1262 | Fortinet’s internal build ID (1262) | | fortinet.out | Standard FortiOS firmware output format | | qcow2 | QEMU Copy-On-Write v2 (native KVM disk format) | Thin Provisioning: The image appears as a large disk (e
The TL;DR: This is a FortiGate firewall VM for KVM, running FortiOS 7.2.3, build 1262.
sudo apt update
sudo apt install qemu-kvm libvirt-daemon-system libvirt-clients virt-manager
virt-install \
--name fortigate-7-2-3 \
--memory 4096 \
--vcpus 2 \
--disk path=/var/lib/libvirt/images/fgt-vm64-kvm-v7.2.3.f-build1262-fortinet.out.kvm.qcow2,format=qcow2 \
--import \
--network network=default,model=virtio \
--os-type=linux \
--noautoconsole
Recommendation: Use v7.2.3 only for air-gapped labs or internal testing. Do not deploy this version on production edge firewalls without a threat assessment. 1. Filename Analysis
In the world of virtualized next-generation firewalls (NGFWs), few names carry as much weight as Fortinet’s FortiGate. For professionals running open-source virtualization platforms like KVM (Kernel-based Virtual Machine) or Proxmox VE, the file format of choice is QCOW2 (QEMU Copy-On-Write).
If you have arrived here searching for the exact string fgt-vm64-kvm-v7.2.3.f-build1262-fortinet.out.kvm.qcow2, you are likely looking for a specific legacy build (version 7.2.3) for an enterprise or lab deployment.
Let’s break down what this file name actually means before we discuss how to obtain and use it:
Important Note: Version 7.2.3 is not the latest FortiOS release. Fortinet regularly releases updates (7.2.4, 7.2.5, 7.4.x, etc.). However, users often seek older builds for legacy hardware compatibility, specific lab testing, or to match an existing production environment.
fgt: Abbreviation for FortiGate (Firewall).vm64: Indicates this is a 64-bit Virtual Machine image.kvm: Specifies the target hypervisor is Kernel-based Virtual Machine.v7.2.3: The major firmware version is 7.2.3.f-build1262: The specific build number.
f following the version number usually designates this as a "Feature" release branch (as opposed to m for "Maintenance"). Fortinet typically recommends the m branch for long-term stability, while the f branch receives new features faster..qcow2: This stands for QEMU Copy On Write. It is the standard disk format for KVM. It allows for snapshots and thin provisioning (the file grows as you write data to it, rather than taking up full space immediately).