I was wondering if it would be possible to have the Ps3 seek it's dev flash files from the usb from bootup.

I realise that you can use JaicraB's USB Custom Firmware Loader to redirect it once xmb(vsh) has loaded but would it be possible to have it redirected before its even loaded?

I want to play around with sys_init_osd. self with having to use a hardware programmer to replace the file if it gets corrupted.