Simply extract the iso image to the usb drive. You should right click on the iso image and the open it with disk image writer. For Debian, this works fine. However, if your pen-drive size is much larger than the iso size, additional partitions may be created on the drive which could be deleted after the installation is complete.Good luck!--On Sun, Sep 13, 2015 at 8:48 PM, Gerardo Ballabio <gerardo.ballabio@gmail.com> wrote: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 advanceGerardoHimanshu ShekharIIIT-AllahabadIRM2015006