invalid FAT12 volume cluster factor

    Facility: EFI$CP, The OpenVMS EFI Partition Control Program

    Explanation: Per EFI FAT specifications, no FAT12 volume can
    offer more than 4084 clusters, and this volume erroneously offers
    more. The FAT volume is apparently corrupted.

    User Action: Reinitialize the FAT12 volume with a larger cluster
    factor, or reinitialize the volume using FAT16 or FAT32.