Hi, On Mon, Jun 15, 2009 at 22:52, Sagar Koirala<sagar.koirala at gmail.com> wrote: > [root at Production mnt]# rpm -qa|grep kernel|sort kernel-2.6.9-34.0.1.EL > kernel-2.6.9-34.EL > kernel-devel-2.6.9-78.0.22.EL > kernel-smp-2.6.9-34.0.1.EL > kernel-smp-2.6.9-34.EL > kernel-smp-devel-2.6.9-78.0.22.EL > kernel-utils-2.4-13.1.80 > [root at Production mnt]# > > I am guessing that I am using mismatched versions of kernels but just not > getting there... > Tried looking all over the place for a solution, haven't had any luck yet! I guess you need a kernel-devel package that matches your running kernel. For instance, you need either a kernel-smp-devel-2.6.9-34.0.1.EL, or (better solution) install kernel-smp-2.6.9-78.0.22.EL and boot the machine with it. If you run an "yum update" or "yum update kernel-smp" it should do that, unless you messed yum.conf with excludes or changed /etc/sysconfig/kernel... By the way, next time please use a subject that describes your issue and not just 'Welcome to the "CentOS" mailing list'. HTH, Filipe