Hi Fajar, usually you're fine, although i experienced some kind of "binary rot" if I did that too excessively. Especally things that are located "near" the kernel like initscripts and the xen daemon may start acting funny (like domU not starting up any more and such things...) if the kernel version is too far off. > I'm curious. If I do yum update (which include kernel update) but don't reboot. > Is it OK? I mean apart of the kernel, other things like services, we > don't have to reboot if we don't have the chance to do it (postponing > to some other date), right? -- Mit freundlichen Grüßen Thomas Göttgens mailto:tgoettgens at gmail.com