On 12/20/2014 07:02 AM, Dave Stevens wrote:

$ rpm -q kernel kernel-xen kernel-2.6.18-371.11.1.el5 kernel-2.6.18-371.12.1.el5 kernel-2.6.18-398.el5 kernel-2.6.18-400.el5 kernel-2.6.18-400.1.1.el5 kernel-xen-2.6.18-371.11.1.el5 kernel-xen-2.6.18-371.12.1.el5 kernel-xen-2.6.18-398.el5 kernel-xen-2.6.18-400.el5 kernel-xen-2.6.18-400.1.1.el5

It is as I suspected, you've been installing both kernel and kernel-sen the entire time.

paste the contents of /etc/grub.conf and then I can give you a proper answer about what to do.

Peter