分区之后的信息是：
Disk /dev/sdb: 8011 MB, 8011120640 bytes
247 heads, 62 sectors/track, 1021 cylinders
Units = cylinders of 15314 * 512 = 7840768 bytes
Disk identifier: 0x8ef631df
Device Boot Start End Blocks Id System
/dev/sdb1 1 686 5252671 6 FAT16
然后我再格式化U盘，
sudo mkfs.vfat /dev/sdb1
这个时候使用 fdisk -l
打印还是对的
但是我运行syslinux之后：sudo syslinux /dev/sdb
发现分区错乱，信息如下：
Device Boot Start End Blocks Id System
/dev/sdb1 ? 137949 265854 979374166 66 Unknown
Partition 1 has different physical/logical beginnings (non-Linux?):
phys=(734, 123, 14) logical=(137948, 6, 21)
Partition 1 has different physical/logical endings:
phys=(120, 143, 6) logical=(265853, 186, 22)
Partition 1 does not end on cylinder boundary.
/dev/sdb2 ? 225242 482806 1972168331 7 HPFS/NTFS
Partition 2 has different physical/logical beginnings (non-Linux?):
phys=(187, 180, 14) logical=(225241, 197, 52)
Partition 2 has different physical/logical endings:
phys=(784, 0, 13) logical=(202345, 177, 1)
Partition 2 does not end on cylinder boundary.
/dev/sdb3 ? 214171 341732 976730017 7d Unknown
Partition 3 has different physical/logical beginnings (non-Linux?):
phys=(252, 59, 46) logical=(214170, 230, 39)
Partition 3 has different physical/logical endings:
phys=(139, 118, 4) logical=(61271, 37, 28)
Partition 3 does not end on cylinder boundary.
/dev/sdb4 ? 70766 70770 32804 6f Unknown
Partition 4 has different physical/logical beginnings (non-Linux?):
phys=(370, 101, 50) logical=(70765, 130, 27)
Partition 4 has different physical/logical endings:
phys=(10, 114, 13) logical=(70769, 200, 38)
Partition 4 does not end on cylinder boundary.