Re: [gentoo-user] old kernels are installed during the upgrade

[Wols Lists]

On 02/01/18 19:26, Stroller wrote:
>
>> On 2 Jan 2018, at 11:54, Kruglov Sergey <kr_serge@×××××××.com> wrote:
>>
>> Now I have  gentoo-sources-4.14.8-r1 installed.
>> After  "emerge --ask --update --deep --with-bdeps=y --newuse @world" command emerge installs old kernel in NS (after first update 4.12.12, after second update 4.9.49-r1).
>> How can I fix it?
>> There is sys-kernel/gentoo-sources in my world set.
>
> Remove sys-kernel/gentoo-sources from your world file - I believe you can do this using the emerge command, but am unsure of the right syntax; you can just edit /var/lib/portage/world and delete the appropriate line.D
>
> Now `emerge -n =sys-kernel/gentoo-sources-4.14.8-r1` - "This option can be used to update the world file without  rebuilding the packages."
>
> This pins your kernel version at 4.14.8-r1 and you can update when, in future, you decide it's time to update your kernel, without being nagged about it every time a new version is release or you emerge world.
>
> For this reason it's always best to emerge kernels with an equals sign, pinning them at some specific version, IMO.
>
Why???

> This suggestion may provoke responses that the kernel is important and you should update it to ensure you get security updates - look at the attack vectors, you're probably sitting behind a NAT router, with very few ports exposed to the internet.
>
> It's adequate to update your kernel every 3 months.
>
You should also check the CVEs every time there's a new kernel!

What this completely misses, is that gentoo-sources merely DOWNLOADS THE
LATEST KERNEL SOURCE. So updating gentoo-sources every time does nothing
to change the kernel you are running.

Just leave gentoo-sources in your world file, and don't necessarily
compile and update your running kernel just because gentoo-sources has
had an update.

I normally do not clean out kernels from my grub.conf until I've built
up enough to be annoying, so downgrading a broken kernel is just a quick
edit away ...

Cheers,
Wol