這裡提到了MBR分區 好像有點關係
Was this a Mac-formatted ipod before? If so, did you only format it as fat32, or did you either have itunes restore it on a windows system or did you follow all steps on http://www.rockbox.org/wiki/IpodConversionToFAT32, including installing the correct MBR/partition table?(包括安装正确的MBR /分区表吗)