I was using centos but came to know it has restrictions to upgrade kernel version so looking for any other flavour with default 3.4 kernel version please suggest
closed as off topic by Bryan, Tim Brigham, EEAA, Michael Hampton♦, voretaq7♦ Dec 7 '12 at 16:32
Questions on Server Fault are expected to relate to professional server, networking, or related infrastructure administration within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.
My fully-updated Fedora 16 box is currently running 3.4.11, and presumably F17 will be even newer (apparently, 3.6.9). That said, these are in my opinion unsuitable for a server OS because of their very fast release cycle, frequent destabilising upgrades, and short support lifetime.
Sadly, it's those very properties that mean they're running a fairly cutting-edge kernel, which makes me wonder why you feel you need to be running such a recent kernel on a server (I'm assuming it's a server because you were looking at CentOS; if it's a desktop, that's different, try F17, it's great).