You're not supposed to mount the image anywhere. Linuz ISO reads the file directly and will fail if any other program uses the ISO
Yes, finally worked! And 97%-100% running fps!
Thanks a lot, Bositman!
Ok, my graphics card is Radeon X1600 Series. I've updated it so it should be okay. So, what configurations should I make so FFX runs at a fairly good speed. (80% fps at least)
in gsdx use ps2 native resolution. in advanced options put both clamps to NONE (in some games put it back to normal or they dont work...) and use speedhacks