At Fri, 25 Mar 2011 18:15:38 +0800 CentOS mailing list centos@centos.org wrote:
Hi all, 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?
Yes, you only *need* to reboot to pick up a new kernel. Unlike MS-Windows, none of the other updates *require* a reboot. Note: if glibc (or other widely used shared libraries) is updated it (they) won't get picked up unless *ALL* of the processes that use it (them) are restarted.
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