Hello @jrajra,
I got this to work on my instance using ShredOS by doing the following:

1. Log in to your Fog web portal
2. Go to “Fog Configuration”
3. Click the “iPXE New Menu Entry” button
4. Enter the following details:
   * Menu Item=ShredOS
   * Description=Boot and Shred (AutoNuke)
   * Menu Show with=Not Registered Hosts
   * Parameters=

kernel https://${fog-ip}/shredos/boot/shredos console=tty3 loglevel=3 shredos_exclude_boot_disc="yes" nwipe_options="--autonuke --nowait --method=zero --noblank --nousb --PDFreportpath=noPDF --autopoweroff"

boot

5. Log into your Fog Linux server
6. Open the terminal
7. Run the following commands:

mkdir /iso
mkdir /var/www/html/shredos
wget -O /iso/ShredOS.iso https://github.com/PartialVolume/shredos.x86_64/releases/download/v2025.11_28_x86-64_0.40/shredos-2025.11_28_x86-64_v0.40_20260204.iso
sudo mount -t iso9660 -o loop /iso/ShreadOS.iso /var/www/html/shredos
chmod -R 777 /var/www/html/shredos

Doing these steps should create a “New Menu Entry” for ShreadOS and specify to shred upon boot, don’t write a completion file, & then turn off the device. (For safety in our environment, I have this option only appear if the device is not registered.)
It then downloaded the ShreadOS file from Github & then mounted the iso as an accessible boot file in the Fog URL. (You can manually download the file & put it in the “/iso” folder instead if you want.)

I have tried this with dban as well, but that only worked for old BIOS based computers. This one on the other hand works for UEFI computers.
I also found this article that might help you: https://forums.fogproject.org/topic/10944/using-fog-to-pxe-boot-into-your-favorite-installer-images
I hope this helps you,
Preston