If you run an yum -y update then it will download version 2.6.9-42.0.3.EL If you are keeping an old [email protected] system updated then this upgrade will require a reboot and you to then issue from the command line a rebuild_zaptel This should solve your problem.   Once you have been running the system for a little bit if you would like to keep things tidy then you can remove the old kernel that you are not using with the following commands a uname -r will show the kernel that you are using   rpm -qa | grep -i kernel  – Will list the kernels that are installed  rpm -e kernel-2.6.9-42.0.2.EL  – Will remove the last update rpm-e kernel-devel-2.6.9-42.0.2.EL