At Sun, 27 Mar 2011 07:56:19 -0400 CentOS mailing list <centos@xxxxxxxxxx> wrote:
>
> On Fri, Mar 25, 2011 at 06:59:26AM -0400, Robert Heller wrote:
> > 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
>
> Warning, though: there's a big difference between *need* and *should*.
Oh, quite understood.
>
> > 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.
>
> Other changes may only take effect once a reboot occurs. In other cases
> you may end up with some programs using new setting and others using
> old settings (eg tzdata; if you've just had a new daylight-savings rule
> change then updating your tzdata rpms will cause newly started programs
> to use the new rules, but old programs to still use the old). It's not
> just limited to glibc.
>
> So, depending on the packages being updated, I normally _recommend_ a
> reboot. But, being a sensible OS, you can reboot at the time of your
> choosing, not at patch time :-)
Yes, definately.
>
--
Robert Heller -- 978-544-6933 / heller@xxxxxxxxxxxx
Deepwoods Software -- http://www.deepsoft.com/
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