problem solved.
thank you for quick reply.
It has just a proxy problem.
I set http_proxy, but forgot to set https_proxy.

On Wed, Feb 4, 2015 at 9:40 PM, Alan Pevec <apevec@gmail.com> wrote:
> yum install -y https://rdo.fedorapeople.org/rdo-release.rpm
> Loaded plugins: fastestmirror, langpacks
> Cannot open: https://rdo.fedorapeople.org/rdo-release.rpm. Skipping.

That's weird, please try: wget -S https://rdo.fedorapeople.org/rdo-release.rpm
Maybe you have proxy between you and RDO messing things up?

Cheers,
Alan



--
Vedsar Kushwaha
M.Tech-Computational Science
Indian Institute of Science