Ok, I had it my way but the ISO required some mods.
Using instead in my FOG boot menu :
- kernel http://${fog-ip}/fog/ISO/memdisk iso raw || goto failed
- initrd http://${fog-ip}/fog/ISO/Utilities/Parted_Magic_2018.04.30_slim.iso || goto failed
- boot || goto failed
I had to downscale ISO so it would fit in a memdisk ISO allocation, which limited to around 608 MB… So I kept the 64 bits images and kernels. All 32 bits stuff was deleted. Runs fine with this “slim” Parted Magic, 64 bits only.
I’ve used ISO Master program in a Debian 9 machine to trim down the ISO content from 624MB down to 582MB.
Steve