Nullifying requirement to reboot after kernel update

[Dave Woyciesjes]

On 04/14/2015 11:09 AM, Chris wrote:
> On Tue, 2015-04-14 at 16:04 +0200, Petter Adsen wrote:
>> On Tue, 14 Apr 2015 08:48:59 -0500
>> Chris <cpollock at embarqmail.com> wrote:
>>
>>> On Tue, 2015-04-14 at 09:14 -0400, Dave Woyciesjes wrote:
>>>> On 04/13/2015 10:28 PM, Chris wrote:
>>>>> On Mon, 2015-04-13 at 20:22 -0400, Dave Woyciesjes wrote:
>>>>>> On 4/13/15 8:24 AM, Chris 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?
>>>>>>>>>
>>>>>>>>> Chris
>>>>>>>>
>>>>>>>> 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.
>>>>>>>>
>>>>>>>> Cheers, Gene Heskett
>>>>>>> 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.
>>>>>>>
>>>>>>
>>>>>> 	It's simple then, Chris. Don't apply any update that
>>>>>> needs a reboot. You only said you don't want to get nagged about
>>>>>> reboot; so obviously you don't care about getting all of the
>>>>>> fixes.
>>>>>>
>>>>>>
>>>>>>
>>>>> True in a sense Dave, at some given point I 'may' want to boot
>>>>> into the latest 3.13.* or 3.14.* kernel, whichever is the latest
>>>>> Ubuntu one, and by just removing the symlink I've removed the
>>>>> nagging of a reboot required (hopefully) and with the latest
>>>>> supported kernel installed I can always boot into it if needed.
>>>>>
>>>>
>>>> 	Problem with that, however, is if someone trips over your
>>>> power cord, you end up in the new kernel before you are ready...
>>>>
>>>>
>>> Not really Dave as I have this line in my /etc/default/grub file
>>>
>>> GRUB_CMDLINE_LINUX_DEFAULT=""
>>>
>>> which replaces
>>>
>>> GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
>>>
>>> which gets me the grub menu where I can pick and choose whichever
>>> kernel I want to boot into.
>>
>> The removal of "quiet splash" does not drop you into a menu, it removes
>> the splash screen (I believe it's called "plymouth") and enables showing
>> kernel messages on boot.
>>
>> Petter
>>
> My mistake, this is the line I commented out which I 'believe' allows
> showing of the grub menu allowing me to choose which kernel to use.
>
> # GRUB_HIDDEN_TIMEOUT=0
> GRUB_HIDDEN_TIMEOUT_QUIET=true
> GRUB_TIMEOUT=30
>
   That would be a good safety catch, then... :) I assume then that you 
have it set to default to your custom kernel?

-- 
--- Dave Woyciesjes
--- CompTIA A+ Certified IT Tech - http://certification.comptia.org/
--- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/
Registered Linux user number 464583

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