Kaushal Shriyan wrote:
Just wanted to confirm the steps with you working on FC4 installed system 1)rpm -ivh yum-2.6.1-0.fc5.noarch.rpm 2)yum upgrade So what i understand is that it upgrades the OS from FC4 to FC5 is this correct
No, it isn't. You need to manually update the fedora-release package to the FC5 version first, and remove any kernels you have installed that are older than 2.6.14.
See also: http://fedoraproject.org/wiki/YumUpgradeFaq Paul.