Fortinet FortiGate FG-80C

Description of Issue
Due to an incorrect partition of the flash storage device, the FortiGate 80C may fail to boot-up. The
flash disk capacity should be 7640MB in size, devices that report a flash disk size of 7636MB have a
hidden partition (4MB) which may prevent the FortiGate from booting up if it attempts to locate the
operating system image in this partition.
The FortiGate models that may be affected by this issue are as follows:
FG-80C (PN: P05403-05-xx or higher)
FG-80CM (PN: P05446-05-xx or higher)
FW-80CM (PN: P05405-06-xx or higher)
To identify the part number (PN) of a specific unit, either;
1) Check the label on the bottom of the unit
or
2) Use the “get system status” command from the CLI
The part number of a device can be identified using the following CLI command:
FGT80C3900000000 # get system status
*************
Serial-Number: FGT80C3900000000
*************
System Part-Number: P05403-05
If your FortiGate is within the affected part number range you can verify the flash disk size to know if
it is correct or if there is a hidden partition that may cause the device to fail to boot-up. Upon boot-
up the flash size may be reported
Boot up, boot device capacity: 4MB --- Incorrect, the device will not boot
Boot up, boot device capacity: 7636MB --- Incorrect
Boot up, boot device capacity: 7640MB --- Correct

Fortinet FortiGate FG-80C Specifications

General

Firewall Throughput	3 Gbps
Firewall Throughput (IPv6)	3 Gbps
Firewall Throughput (UDP)	3 Gbps
VPN Throughput	1 Gbps
Form Factor	Desktop
Weight	2.1 Kg
Power Supply	100–240V AC
Interfaces	8 x GE RJ45 ports, 2 x GE SFP slots

Summary

Description of FortiGate Boot Issue

FortiGate Flash Disk Re-formatting Procedure

Download Format Images

Obtain the correct format images for FG80C, FG80CM, or FW80CM models from provided FTP links.

Configure TFTP Server

Set up a TFTP server and place the downloaded firmware and format images in the root directory.

Execute Pre-Format Step

Load the pre-format image via console and select the pre-format option in the Opencard Mode Selection Menu.

Perform F1 Image Format

After pre-formatting, load and run the F1-format image to complete the partition re-formatting process.

Install Final FortiOS Image

Load the desired FortiOS image (e.g., 4.0MR3 patch 12) onto the formatted FortiGate device.