Hi all.
I was able to convert the ISO image into a ISO-Hybrid Image to boot on usb drives.
Before i was not able to boot the image flashed on a usb drive but now after the conversation into a ISO-Hybrid image
now i can boot on a usb drive.
The FossaPup64 ISO-Hybrid image can be downloaded from mega here:
It was created using this How-To here!
How to convert a ISO image into a ISO-Hybrid Image
The MD5 of the ISO-Hybrid image is:
07ff9b2b4dc299bbf206f7b48e67fcdf fossapup64-9.5-hybrid.iso
Have all fun.