Is it possible to install linux without keyboard or mouse usb?
No it is not... unfortunatly you will have to use a USB or PS2 keyboard (with adapter) to install Linux on your PS3.
its not much to pick up a wireless keyboard and mouse, paid $30 for mine
How about a bluetooth mouse or keyboard?
I have a bluetooth mouse but it doesn't seem to work with it, the mouse won't even connect. i'm not sure if it's my model or what, but i have heard of others working for them. look for someone on the forums who has tried it before buying them.
no it not possibile, you can only reach the setup without a keyboard using yellowdog kboot that autolaunch your linux installation.
although it is useless linux without a keyboard or a mouse because you can do nothing with the OS.... however they are really cheap to buy.