Fortinet FortiGate 51E OpenWrt Firmware
- CPU
- Marvell Armada 385 88F6820
- RAM
- 2048 MB
- Flash
- 128 MB
The Fortinet FortiGate 51E is supported by OpenWrt on the mvebu/cortexa9 target. 3 firmware images are available from the official OpenWrt 25.12.5 stable release — download one below, or build a custom OpenWrt image for this device with your own package selection.
Specs
Specifications
| CPU | Marvell Armada 385 88F6820 |
|---|---|
| CPU cores | 2 |
| CPU frequency | 1600 MHz |
| RAM | 2048 MB |
| Flash | 128 MB |
| 1 Gbit Ethernet ports | 7 |
| Switch | Marvell 88E6176 |
Hardware data from the OpenWrt Table of Hardware; verify against your unit before flashing.
Build matrix
Supported firmware versions
| Distribution | Version | Target | Profile |
|---|---|---|---|
| OpenWrt | 25.12.5 | mvebu/cortexa9 | fortinet_fg-51e |
Downloads
Download images
OpenWrt 25.12.5 · mvebu/cortexa9
| Image | Type | sha256 |
|---|---|---|
| openwrt-25.12.5-mvebu-cortexa9-fortinet_fg-51e-initramfs-kernel.bin Minimal kernel image, useful for first install or recovery. | kernel | ceb7b20958b3… |
| openwrt-25.12.5-mvebu-cortexa9-fortinet_fg-51e-squashfs-sysupgrade.bin Not sure? Pick this if upgrading from OpenWrt. | sysupgrade | 55d202281c51… |
| openwrt-25.12.5-mvebu-cortexa9-fortinet_fg-51e-targz-rootfs.tar.gz Rootfs archive for Docker / LXC containers. | rootfs | 580ee805688e… |
Downloads are served by the official OpenWrt mirrors — unchanged upstream stable builds.
Packages & install
Default packages & installation
Default packages
Every image for the Fortinet FortiGate 51E ships these packages by default. The customize option below lets you add or remove packages before the image is assembled.
Device packages (2)
kmod-hwmon-nct7802 kmod-dsa-mv88e6xxx
Target default packages (26)
apk-mbedtls base-files ca-bundle dnsmasq dropbear firewall4 fstools kmod-gpio-button-hotplug kmod-nft-offload libc libgcc libustream-mbedtls logd mtd netifd nftables odhcp6c odhcpd-ipv6only ppp ppp-mod-pppoe procd-ujail uboot-envtools uci uclient-fetch urandom-seed urngd
Installation notes
- Already running OpenWrt or ImmortalWrt: flash the sysupgrade image from LuCI (System → Backup / Flash Firmware) or with the sysupgrade command.
- The kernel / initramfs image boots from RAM without writing to flash — useful for a first install or for recovering from a failed flash.
- Verify your download against the published checksum before flashing:
$ sha256sum openwrt-25.12.5-mvebu-cortexa9-fortinet_fg-51e-initramfs-kernel.bin ceb7b20958b35fa2689c95510dea8d05b013883d365cae97af13e91caee15138 openwrt-25.12.5-mvebu-cortexa9-fortinet_fg-51e-initramfs-kernel.bin
Build custom firmware
Need more than the default image for the Fortinet FortiGate 51E? Pick your packages — LuCI apps, themes, VPN clients — set the basics, and get a ready-to-flash OpenWrt image assembled from official packages in minutes.
Customize firmware for this deviceRelated
Related devices
More Fortinet devices
- Fortinet FAP-220-B OpenWrt firmware
- Fortinet FAP-221-B OpenWrt firmware
- Fortinet FAP-221-C OpenWrt firmware
- Fortinet FAP-421E OpenWrt firmware
- Fortinet FortiGate 30E OpenWrt firmware
- Fortinet FortiGate 50E OpenWrt firmware
- Fortinet FortiGate 52E OpenWrt firmware
- Fortinet FortiWiFi 30E OpenWrt firmware
More devices on mvebu/cortexa9
Upstream
Upstream & source
Images are assembled from packages compiled and published by the upstream OpenWrt and ImmortalWrt projects. The complete corresponding source code is available from those projects under the GPL.