Can you post here the output of
Code:
sudo fdisk -l
, say before and after the cloning?

Technically dd reads from the source disk a number of sectors specified by the user and writes on the target disk. Since the first sector is the MBR so the target disk is "forced" to have the same partition table as the source.

The read/write head must read one sector complete in eachoperation and the information transferred is just the binary pattern. Therefore the target is a mirror image of the source and there cannot be anything else. No filing system is involved. dd only stops when either the number of sector has been exhausted in either the source or the target disk.

Can you repeat the process without the "sync" option?