I dont think we know how to partition a PS3 HDD yet..
Even if we did formatting etc. would be heard..
THEN ypu would have to make a homebrew GRUB (Linux Bootloader)
to even boot up a firmware..
Nice idear anyway.....
Does anyone remember USB Firmware Loader? Requires Peek+Poke, loads FW in RAM, resets to 3.15, 3.41, etc when u reset, just resign it for 3.55 and extract the Dev Flash from 3.56, however, since we can bypass idk what the purpose of this would be