Linux Disk Copy

HardDisk Copy In Linux
(Disk to Disk Copy)

Connect two hard disk in the mother board.
Boot the system with the data hard disk.
Run the following command to know the hard disk name,
# fdisk -l (shows booted H/D)
# ls /dev/ (shows the other H/D)
Let the data containing hardisk be HDA and the data in which to be copied be HDB.
Now execute the below command to copy the hard disk.

# dd if=/dev/hda of=/dev/hdb bs=1024k

Now the data's with start to copy.