On Mon, 15 Sep 2014 03:37:57 +0300 Alexandros Prekates <aprekates@openmailbox.org> wrote: > I wonder if my first mistake was that i used: > #cp debian.iso /dev/sdb1 > and not > #cp debian.iso /dev/sdb It was, the 1st one address a partition, when the 2nd address the whole 'disk'.