fdisk -S 32 -H 32 /dev/sdc
fdisk -S 32 -H 32 /dev/sdd

:~# fdisk -l /dev/sdc
 
Disk /dev/sdc: 60.0 GB, 60022480896 bytes
32 heads, 32 sectors/track, 114483 cylinders
Units = cylinders of 1024 * 512 = 524288 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xbbf475e5
 
   Device Boot      Start         End      Blocks   Id  System