Nullifying requirement to reboot after kernel update

[Tom H]

On Mon, Apr 13, 2015 at 8:24 AM, Chris <cpollock at embarqmail.com> wrote:
> On Mon, 2015-04-13 at 01:23 -0400, Gene Heskett wrote:
>> On Sunday 12 April 2015 22:21:52 Chris wrote:
>>>
>>> The subject says it all. Based upon the fact that I'm running a
>>> non-standard kernel from here -
>>> http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next/ whenever
>>> a support Ubuntu kernel comes down the pike such as 3.13* I'd like to
>>> go ahead and install it but not go through the reboot process because
>>> I'll continue to run the kernel shown below or a newer version is
>>> required. Is there a setting where I can comment out the reboot nag?
>>
>> If it tells you to reboot, it does so because that is the only way to get
>> the bug or security fixed version of the software it just updated into
>> operation and your machine then armored against the security exploit.
>>
>> If you do not reboot, you will be leaving your system in a buggy or
>> vulnerable condition.
>
> That's why I mentioned in my initial post above Gene that I'm not
> running the 'standard' kernel but an updated drm-intel kernel from the
> link I provided. I'm running this kernel because of the video lockups
> I'd been getting and the bug report I made here -
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1402331 and I'm
> also running an updated xf86-video-intel driver. So far this combination
> has worked. In order to track how long this combination will go without
> a lockup I need to be able to ignore the mandatory reboot after a
> standard Ubuntu kernel update.

AFAIK, the message about rebooting after a kernel's installed is
triggered by "/etc/kernel/postinst.d/update-notifier".