Re: [gentoo-user] Inquiry about gentoo kernel configuration

[Ramon Fischer]

Yes, but the image does not need to be up-to-date, since you only use it 
temporarily; everything else is done in a chroot environment. One thing 
to mention, though: The LiveDVD can be booted from UEFI, which you will 
need to finalise[2] the Gentoo installation on a UEFI system.

As William already mentioned, you can boot from almost any Linux live 
media and install Gentoo[1] from there.

-Ramon

[1] https://wiki.gentoo.org/wiki/Handbook:AMD64/Full/Installation
[2] See important note: 
https://wiki.gentoo.org/wiki/Handbook:AMD64/Full/Installation#Booting_the_installation_media

On 11/07/2021 15:11, Dongliang Mu wrote:
> On Sun, Jul 11, 2021 at 1:23 AM Ramon Fischer <Ramon_Fischer@×××××××.de> wrote:
>> In addition to this:
>>
>> I did some further research about this, since I actually never thought
>> about getting the Kernel sources without having an installed Gentoo system:
>>
>> You may take a look at one of the HTTP mirrors[1], preferably one in
>> your country and navigate to "/releases/<cpu_architecture>/". There you
>> will find a Live DVD image - "livedvd-amd64-multilib-20160704.iso" for
>> example - from which you could boot from; either virtually in VirtualBox
>> or other virtualisation solutions or directly from hardware.
>>
>> Click on "Login" to login and get the Kernel sources from
>> "/usr/src/linux/.config".
> Thanks for your effort. But it seems such livecd is not maintained
> anymore. The latest version is 20170118 [1], right?
>
> [1] http://mirrors.kernel.org/gentoo/releases/amd64/20170118/
>
>> -Ramon
>>
>> [1] https://www.gentoo.org/downloads/mirrors/
>>
>> On 10/07/2021 14:24, William Kenworthy wrote:
>>> On 10/7/21 7:40 pm, Ramon Fischer wrote:
>>>> Hello Dongliang,
>>>>
>>>> you could retrieve kernel configuration files from a "Minimal
>>>> Installation CD"[1] of Gentoo. Mount it and look for
>>>> "/boot/gentoo-config".
>>>>
>>>> But I guess, you want a untouched version, don't you?
>>>>
>>>> -Ramon
>>> Hi, to expand on this - Gentoo doesn't really have a standardised kernel
>>> config - the nearest to that is the above install CD, or the default
>>> generic catchall "genkernel" one - most people seem to manually
>>> configurate and tune/customise a .config and then copy it from system to
>>> system.  There are a few bin(ary) kernels in portage/sys-kernel/* that
>>> might work for you but I have never tried them.
>>>
>>> You can boot almost any linux live media on your target hardware and
>>> extract the config (sysrescuecd is a good one) and use their sources, or
>>> build the kernel using their config on top of Gentoo's vanilla-sources,
>>> or gentoo-sources.
>>>
>>> Or grab another distros boot directory (containing the kernel, initrd
>>> and config files), the matching /lib/modules directory and boot that
>>> instead of building your own (I do this often on uboot based arm systems
>>> and raspberry pi's.)
>>>
>>> Or ask on the list if someone has a config that matches your target
>>> (occasionally it comes up).
>>>
>>> BillK
>>>
>>>
>>>
>>>
>>>> [1] https://www.gentoo.org/downloads/
>>>>
>>>> On 10/07/2021 11:15, Dongliang Mu wrote:
>>>>> Hi Gentoo users,
>>>>>
>>>>> I am a newbie to Gentoo. For Debian, I can get configuration files
>>>>> from Debian packages. I wonder if possible to get the kernel
>>>>> configuration files of Gentoo.
>>>>>
>>>>> If this question is invalid, please let me know.
>>>>>
>>>>> [1]
>>>>> http://ftp.debian.org/debian/pool/main/l/linux/linux-config-5.10_5.10.46-1_amd64.deb
>>>>>
>>>>> --
>>>>> My best regards to you.
>>>>>
>>>>>         No System Is Safe!
>>>>>         Dongliang Mu
>>>>>
>> --
>> GPG public key: 5983 98DA 5F4D A464 38FD CF87 155B E264 13E6 99BF
>>
>>

-- 
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