yea, you can put linux on your PS2 if you have a hard drive. They actually have a linux kit that i think includes a key board and hard drive, plus linux disks. Probably could find it on ebay. And If you have The HDD loader program you can load games right from your PS2 hard drive. But like I said, I went the cheap route. But thanks.
*also little side note, if you put a linux formatted disk in an xbox it will eject the disk and shut off. I thought that was kinda funny.
http://www.linuxplay.com/