Hello,I'm trying to write a bootable iso image (jessie live dvd) to a USB stick. I'm running jessie with Gnome.This page: <https://www.debian.org/releases/jessie/i386/ch04s03.html.en> says that I should first make sure what the correct device name is (done -- df lists the stick as /dev/sdb1), then unmount the stick (done), then "cp image.iso /dev/sdb" (I suppose as root, so I used sudo).That fails with this error:cp: cannot create regular file ‘/dev/sdb’: No medium found"ls -l /dev/sdb" shows this:brw-rw---- 1 root disk 8, 16 Sep 13 16:53 /dev/sdbCan you please help me?Thank you in advanceGerardo