Question

任何人都可以解释我为什么我看到以下fdisk输出为我刚购买的USB密钥设备（8GB）：

Disk /dev/sdb: 7902 MB, 7902068736 bytes
244 heads, 62 sectors/track, 1020 cylinders
Units = cylinders of 15128 * 512 = 7745536 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x6f20736b

This doesn't look like a partition table
Probably you selected the wrong device.

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   ?       51437      126894   570754815+  72  Unknown
Partition 1 has different physical/logical beginnings (non-Linux?):
     phys=(357, 116, 40) logical=(51436, 195, 11)
Partition 1 has different physical/logical endings:
     phys=(357, 32, 45) logical=(126893, 132, 51)
Partition 1 does not end on cylinder boundary.
/dev/sdb2   ?       11151      139128   968014120   65  Novell Netware 386
Partition 2 has different physical/logical beginnings (non-Linux?):
     phys=(288, 115, 43) logical=(11150, 198, 47)
Partition 2 has different physical/logical endings:
     phys=(367, 114, 50) logical=(139127, 72, 42)
Partition 2 does not end on cylinder boundary.
/dev/sdb3   ?      123605      251581   968014096   79  Unknown
Partition 3 has different physical/logical beginnings (non-Linux?):
     phys=(366, 32, 33) logical=(123604, 2, 30)
Partition 3 has different physical/logical endings:
     phys=(357, 32, 43) logical=(251580, 119, 39)
Partition 3 does not end on cylinder boundary.
/dev/sdb4   ?      190752      190755       27749+   d  Unknown
Partition 4 has different physical/logical beginnings (non-Linux?):
     phys=(372, 97, 50) logical=(190751, 0, 25)
Partition 4 has different physical/logical endings:
     phys=(0, 10, 0) logical=(190754, 163, 33)
Partition 4 does not end on cylinder boundary.

Partition table entries are not in disk order

来自同一供应商（Transcend）和型号（JetFlash 700）的其他设备也是如此。非常奇怪的是，在Windows / Mac / Linux上，USB设备会自动挂载，并显示一个8GB的分区。

问题是：这个分区表出了什么问题？我在其他USB设备上看到了类似的一个。

Answer 1

它可能是某种预先安装的伪分区方案，一些供应商用它来将它放在他们的USB设备上。

看看这里：

http://en.wikipedia.org/wiki/U3

最好的方法是删除所有现有分区并创建一个新分区（vfat或ext3）。

用于USB设备的奇怪分区表

1 个答案: