On Wed, Dec 18, 2013 at 11:29 PM, Jayadevan Maymala <jayadevan.technology at gmail.com> wrote: > Hi, > I am using CentOS 6.4. > uname -r gives me > > 3.9.3-x86_64 Kernel version is 2.6.32. My questions - > > What is 3.9? In Ubuntu, uname -r and /boot give the same version numbers. > > Do we have a mapping of CentOS versions, the numbers like 3.9 and > kernel versions maintained somewhere? Please show us the output returned by: rpm -qa kernel\* | sort That should give us some clue. Akemi