When installing iPodLinux on a WinPod, the pre-formatted file system, also called the music partition, does not allow Linux to be installed on. The reason being that it uses the FAT format, which Linux cannot run from. Hence, another small partition with the ext2 format must be added to the iPod's disk (taking a few dozen MB of space away from the FAT partition). While Linux users should be familiar with accessing this partition, Mac and Windows users can find help here with accessing the ext2 partition.