Does checkrestart (apt-get install checkrestart) prompt for application
restarts on library updates, or only for daemons?

On Jan 29, 2018 08:43, "Joe" <> wrote:

> On Mon, 29 Jan 2018 08:18:35 -0500
> wrote:
> >
> > I regularly download "security" upgrades for Wheezy.  I assume that
> > most of those don't take effect until I restart the application.  For
> > instance, a Firefox upgrade does not take effect until I shutdown
> > Firefox and restart it.
> >
> > Correspondingly, I assume that a Linux kernel upgrade does not take
> > effect until I reboot the machine.
> Yes, but it's a little more complicated. The modules used by the kernel
> (and the kernel file itself) *are* replaced during the process of
> upgrading the kernel, but the running code is not. There is a tiny
> chance of some kind of mismatch if new modules are loaded, so rebooting
> is recommended soon, and in the past I used to see a message to that
> effect, displayed during the upgrade.
> Generally, user applications (e.g. Firefox) will not be restarted
> automatically, but most daemons will be e.g. mysql, exim4. Some
> important daemons may request your input as to whether to restart or
> not e.g. during a major upheaval such as a libc upgrade. Pretty much
> all software on a server is in the form of daemons, and generally
> rebooting a server is only necessary after a change of kernel.
> --
> Joe

Reply via email to