# ls -lh /home/pravjot/Downloads/Fedora-Live-Workstation-i686-21-5.iso
# yum install ddrescue
# fdisk -l
# ddrescue Fedora-Live-Workstation-i686-21-5.iso /dev/sdb --force
All done. The above can take some time depending on a writing speed of your USB key. Once finished simply unplug your USB key from your Linux box and use it to boot Fedora Linux from it.
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