Sometime in our fortigate firewalls, we develop issues with the image and flash storage. In this post we will look at a FWF60B and the recovering and restoring the image on the internal flash storage.
1st if your firewall boots with the following error or any errors or just flat out don't boot;
This is a good sign or bad things ahead. But have no fear we can recover.
2nd, you will need to pull the power cord and interrupt the boot process & reinstall and/or format
note: here we will reformat and then install a fresh image into the flash using TFTP-server. It will require that you have access to fortinet support for downloading the appropiate image
Okay so let's reformat and install our new image;
tftp-server = located at 192.168.1.168
fortigate = temporary configured at .188
netmask = /24
image = FWF_60B-v400-buildXXXX-FORTINET.out ( xxxx = the version build )
Okay that's simple. And as you can see the unit will validate the image and reboot the firewall after the recovering.
Lastly, if you suspect hardware issues; Fortinet provides a diagnostic image that you can download and BOOT and run extended diagnostics. These images are known as HQIP and once again, require access to support @ fortinet.
So if you suspect hardware issues, grab the HQIP file for your model and run the diagnostics & before reinstalling the image.
Freelance Network/Security Engineer
kfelix ----a--t----socpuppets ---.---com
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