Re: [gentoo-user] alternative kernels

[Alan McKinnon <alan.mckinnon@gmail.com>]

On 26/10/2014 22:21, Alexander Kapshuk wrote:
> On Sun, Oct 26, 2014 at 10:16 PM, Canek Peláez Valdés <caneko@gmail.com> wrote:
>> On Sun, Oct 26, 2014 at 1:56 PM, Alec Ten Harmsel
>> <alec@alectenharmsel.com> wrote:
>>>
>>> On 10/26/2014 03:47 PM, Volker Armin Hemmann wrote:
>>>> Am 26.10.2014 um 20:09 schrieb Alexander Kapshuk:
>>>>> I've been using gentoo-sources for a while now.
>>>>>
>>>>> I remember reading on this list about some users using alternative
>>>>> kernels on their gentoo systems. My understanding is that amongst some
>>>>> of the other alternatives, besides the genkernel, which I'm not
>>>>> interested in using, are vanilla-sources available in the portage
>>>>> tree, and the sources available on kernel.org.
>>>>> I'd appreciate being given some pointers on how the folk here maintain
>>>>> their alternative kernels.
>>>>>
>>>>> Thanks.
>>>>>
>>>>> .
>>>>>
>>>> I let portage update the vanilla-sources and once in a while a build and
>>>> install a new kernel. At the moment I am on 3.12.23. Maybe I install
>>>> 3.12.30 tonight. If I find a good reason to do so.
>>>>
>>> What happens when you run `emerge --depclean`?
>>>
>>> I always un-keyword the exact version of vanilla-sources that I'm
>>> running since I update and depclean on a weekly basis. I'm not a huge
>>> fan of having a bunch of kernels under /usr/src/linux-* but only having
>>> a couple of them compiled, but to each his own I guess.
>>
>> I have sys-kernel/vanilla-sources in package.keywords, unversioned. So
>> depclean cleans away the older versions, and I keep the latest one.
>>
>> I'm on 3.17.1 right now, but the moment 3.17.2 comes out I will switch
>> to it in all my machines: with kerninst is all of it mostly
>> automatized.
>>
>> And with systemd, rebooting to a new kernel takes just a few seconds ;)
>>
>> Regards.
>> --
>> Canek Peláez Valdés
>> Profesor de asignatura, Facultad de Ciencias
>> Universidad Nacional Autónoma de México
>>
> 
> Do you know if vanilla-sources plays well with openrc, as that is what I use?
> Thanks.


Yes it does. There's no logical reason to think it doesn't.

You do have to set some kernel options, but that is true for just about
everything in the kernel - you won't have support for hardware X unless
you enable hardware X in the kernel config :-)

One of the additions with gentoo-sources is the very first menu item,
all it does is enable a bunch of stuff that supported init systems
(openrc and systemd) use - it's purely a convenience measure and doesn't
change the kernel itself per se. systemd for example will need cgroups
enabled, openrc needs udev-mount. It's all in the ebuild, and portage
throws an error is something required is not set in .config.



-- 
Alan McKinnon
alan.mckinnon@gmail.com