On Thu, Jul 25, 2013 at 1:28 AM, David G.Miller <[log in to unmask]> wrote:
>
> I'm guessing you could back-port FedUp to EL and have a reasonable shot at
> upgrading EL-n to EL-n+1.

(I forgot to reply to this point.)

For EL-6/EL-5, you'd have to port preupgrade and not fedup. but more
than simply porting the preupgrade package (and it might not be
possible for El-5 because preupgrade started out in Fedora 8 - IIRC -
and might need versions of anaconda and other packags that are
unavailable in EL-5), you'd also have to have an anaconda upgrade
image for preupgrade to pull in to "/boot". It' more than simply
grabbing a few Fedora SRPMs and rebuilding them...