On Fri, Nov 01, 2013 at 01:47:37PM +0100, Veljko wrote: > Isn't that to inform the OS of partition table changes? In this case, > partition table stays the same. It has changed: prior to sgdisk, sda has no partitions and sda1, sda2 etc. do not exist. After you clone the table from sdb, they do. My lack of familiarity with sgdisk means I don't know whether it triggers a rescan itself or not.