does your mod support linux? if so, do i need to flash it to video card on Windows and move the card to linux rig?
It does! My 560 rig is running ethos.
My ethos rig was able to flash my 560 with atiflash (it's built into ethos now), but I did have a customer with a gigabyte 560 that atiflash on ethos didn't recognize as an adapter. He had to throw that card into his windows PC to flash it.