I have a new PC without optical drive so I wanted
to install from a USB stick. I found neither of the
methods listed in the Scientific Linux website worked.
However, a read of parts of the script
livecd-iso-to-disk
led to a working method. The problem is that the
script cannot find
/EFI/BOOT/+(BOOT|boot)?*.conf
for the good reason that the file required is
actually called grub.cfg. Editing that and
isolinux/isolinux.cfg by hand (replacing the
LABEL=... bits by UUID=... for the UUID of the
USB stick) worked fine.

I suggest that the instructions and/or the script be
updated to reflect the change of name of the
required configuration files

Malcolm MacCallum