On 10/30/09, Rob Kampen <rkampen at kampensonline.com> wrote: > Please excuse a possibly dumb question. > Prior to the release of CentOS 5.4 I believe two updated 5.4 kernels > were released as part of 5.3 > 2.6.18-164.el5 and 2.6.18-164.2.1.el5 > Now that 5.4 is released we have just the 2.6.18-164.el5 kernel. > Now the dumb question - what happened to the updated kernel? > I now have workstations running 5.4 with the 164.2.1.el5 as they get yum > update run regularly, however I do not reboot my servers as often and > now find these do not have the later kernel. > If some kind soul would please enlighten me..... > Rob If you do not reboot the new kernel never activates. Almost the same with libs and binaries. If an old binary is running then the update is not magically activated. For libs and binaries it is possible that the old buggy bits to continue to run at the same time that new version is available or running. Some interesting actions with programs like firefox, apache, python and other plugin friendly programs might be observed. Some programs/ services like sshd do force a restart on the live system to side step some of these risks when reinstalled or updated. It does pay to inspect the announcements, change log and release notes so a reboot is not delayed and the system left open to risk. -- NiftyCluster T o m M i t c h e l l