2012/4/10 Srineth Priyanka <srineth.priyanka@gmail.com>
Hello
atleast yum install @development-tools command also not working

thanks

Can you tell us what error are you getting when executing this command?
Please provide sufficient  details before asking your query, then only people will help you.
 
--
Praveen Kumar
http://fedoraproject.org/
http://kumar-pravin.blogspot.com