Comment 16 for bug 1507002

yesterday , i have upgraded ubuntu 15.04 to 15.10.
and try to create a USB boot from ubuntu-15.10-server-amd64.iso

when i try to boot from that usb i got this error

attempting Boot From usb device
SYSLINUX 6.03 EDD 20150813 Copyright (C) 1994-2014 H. Peter Anvin et al Boot error