Hi, I have an issue with my XEN servers, in that when I do a yum upgrade, it upgrades the kernels, and then updates the grub.conf file to boot with the normal Linux kernel, and not the XEN kernel - and I tend to forget to update the grub.conf, until I reboot and see XEN isn't running. So, is it safe to remove the normal kernel & kernel-development, and only run the XEN kernel? This is what I have currently: root at usaxen03:[~]$ rpm -qa | grep kernel kernel-xen-2.6.18-128.7.1.el5 kernel-xen-2.6.18-164.10.1.el5 kernel-xen-2.6.18-164.el5 kernel-headers-2.6.18-164.10.1.el5 kernel-xen-2.6.18-164.6.1.el5 kernel-xen-2.6.18-164.9.1.el5 When I want to remove kernel-headers, it wants to remove gcc as well: root at usaxen03:[~]$ rpm -qa | grep kernel kernel-xen-2.6.18-128.7.1.el5 kernel-xen-2.6.18-164.10.1.el5 kernel-xen-2.6.18-164.el5 kernel-headers-2.6.18-164.10.1.el5 kernel-xen-2.6.18-164.6.1.el5 kernel-xen-2.6.18-164.9.1.el5 Do I really need gcc on the XEN dom0 host? The servers are all running CentOS 5.4 x64