On Mon, Jul 07, 2014 at 04:52:22PM -0500, Connie Sieh wrote:
> >>>
> >>>The iso in
> >>>http://ftp.scientificlinux.org/linux/scientific/7rolling/x86_64/iso/
>
> >>Yes.  To burn to a DVD you will need a Dual Layer DVD .
>
> >USB installer or bust!
>
> Go for it.
> 

Just checked, the CentOS 7 ISO image explictely supports "dd" to USB flash.

This is as opposed to the SL6.5 ISO images where "dd" to USB flash are not bootable.

(SLC 6.5 (CERN) iso image "dd" to USB flash is also bootable).

I am only partially aware of severe magic required to make bootable USB flash
devices (spent 2 days last week making an SL 6.5 USB flash bootable - grub1 - "error 18",
extlinux - "boot error" and "cannot load ldlinux.c32", depending on which extlinux,
grub2 finally booted, but no SL6.5 grub2 RPMs, had to cross-build it myself),
but if SLC, CentOS and Ubuntu can do it, no excuse for not having it in SL.

P.S. But I have no idea how this integrates with using a site-specific kickstart file,
the best I can tell, the ISO image is "read-only" and it is impossible to put
my kickstart file inside it, so I still have to do what I do with my USB installer
if I want to run kickstart installs from USB.

P.P.S. But maybe this does not matter as I do many installs by cloning. (saves time on
all the post-install customizations).

P.P.P.S. But cloning does not run the RH installer (anaconda) which proved
an eccelent hardware test - machines that crash, hang and fail during installation
tend to be faulty and also fail in normal use, machines that can boot and run the installer
from start to finish tend to be stable in normal use.

-- 
Konstantin Olchanski
Data Acquisition Systems: The Bytes Must Flow!
Email: olchansk-at-triumf-dot-ca
Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada