Not really sure this is the right questions for here, this is a linux forum not a apple one but I'll answer this anyway. Disc Utility on Mac should be able to format to a "UNIX File System", This should work if you are wishing to format from the Mac. Not exactly certain what FS it formats to tho unfortantly. Alternatively "MS-DOS File System" I believe would work as that is essentially FAT.
Last edited by r3sistance; 03-02-2009 at 02:50 PM.