Let's assume that :
- Your destination partition table is correctly defined
- Sizes of
sda5
and sdc5
matches (otherwise it would not make sense, or you will need to run gparted
to resize the filesystem if sda5
is smaller than sdc5
)
You will probably want to copy just the first 440 bytes of the MBR since the partition table is whithin the MBR sector (see wikipedia entries (en) or (fr) with dd
command examples).
dd if=/dev/sda of=/dev/sdc bs=1 count=440
Anyway, gparted
allows you to easily and quickly copy data between partitions since it analyzes filesystems and only copies the bytes needed, so I would recommend gparted against dd
.
The only exception would be in the case you want to recover a broken drive, in that case I would recommend you to extract data with dd_rescue
which is more resilient to errors than dd
, probably faster, too.
dd
to copy a partition could, I suppose be done. But it involves tedious details which I would never want to mess with unless I had no other choice. Why not boot the Ubuntu Live CD or USB and usegparted
to copy the partition? That way the partition table in the MBR will be properly updated as well as any other file system parameters that might need to be "tweaked" as a result of the relocation.dd
command line used in question.