On Mon, 16 Feb 2009, Andy Whitcroft wrote:
> @Tim -- Its not obvious whether the warn_reboot is mean to actually
> control whether you are recommended to reboot. The comment on the
> variable in those scripts says its whether you wanted to be warned
> specifically about installing the same version of the kernel. ie. if
> you have just lost the modules which match the kernel you are running.
> Now admittedly we do not use that variable anywhere. Indeed looking
> back we cirtainly have not used it since at least gutsy.
The name "warn_reboot" is a better name for an option that controls
whether you are recommended to reboot on kernel updates, than for one
that is conditional on what sort of upgrade just happened.
Since the code related to warn_reboot has been non-functional since at
least Gutsy, it seems hard for changing its meaning in this way to bite
anyone.
> Any time we install a kernel we want to be recommending people to
> update. We gave them a new kernel for a reason, its not clear one would
> want to be told not to. Also when you have just lost your modules you
> would definatly want to be told, and there does not seem to be support
> for that.
The application I had in mind for this option is users who are using
Ksplice to install rebootless versions of the Ubuntu kernel updates.
Ksplice users might want to install a new kernel package, so that they get
a new kernel the next time they boot. However, they might not want to be
bugged about rebooting their machine given that they have already applied
the appropriate updates to their running kernel using Ksplice. So, I
think it makes sense to have an option that they can use to disable reboot
notifications for kernel upgrades.
-Tim Abbott
--
linux-image postinst script ignores warn_reboot in /etc/kernel-img.conf
https://bugs.launchpad.net/bugs/296925
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