Copy GPT Partitioning layout to other hard disk drivePosted: October 18, 2011
To copy GPT Partition layout to many drives we need sgdisk. sfdisk cant do that.
As of Debian 6.0. Installer does not have sgdisk. So I had rebooted the machine from Gparted live cd. and ran the command given below.
Note that the /dev/sdb is destination drive and source is second device(/dev/sda) (exchange them at your own risk). It will copy partition layout from /dev/sda to /dev/sdb
#sgdisk -R=/dev/sdb /dev/sda
The command below is required coz the first command copy/assign the same GUID to new device. So to assign another random unique GUID run the following command
#sgdisk -G /dev/sdb