Modular Kernel Packaging for Cloud

Sandro "red" Mathys red at
Fri Mar 14 14:47:05 UTC 2014

On Fri, Mar 14, 2014 at 11:00 PM, Bruno Wolff III <bruno at> wrote:
> On Fri, Mar 14, 2014 at 16:42:11 +0900,
>   "Sandro \"red\" Mathys" <red at> wrote:
>> Okay, I poked around in the yum source, yum docs and kernel packages a
>> bit. So yum (and some testing confirms, dnf too) does not check the
>> package names but the provides (obviously, thinking about it). The
>> actual magic being that both kernel and kernel-core provide "kernel".
>> If that is still the case once the patch is merged from copr to
>> Fedora, no changes to yum or dnf should become necessary. Which would
>> probably leave us with "anaconda must allow for installing only just
>> kernel-core instead of kernel (when kickstarting)" as the only
>> necessary change to Fedora. I guess.
> The behavior is controlled by the installonlypkgs setting in yum.conf. From
> the man page:
>  installonlypkgs  List  of package provides that should only ever
>               be installed, never updated.  Kernels in  particular  fall
> into
>               this  category. Defaults to kernel, kernel-bigmem,
> kernel-enter‐
>               prise, kernel-smp, kernel-modules,  kernel-debug,
> kernel-unsup‐
>               ported,  kernel-source,  kernel-devel,  kernel-PAE,
> kernel-PAE-
>               debug.
> I believe kernel-modules-extra also got added to the default relatively
> recently. But that change doesn't seem to have made it to the documentation.
> (That package provides installonlypkgs(kernel-module), so there might be
> some extra magic related to that provide.)

kernel-modules-extra hasn't been added, but
installonlypkgs(kernel-module) has been. Well, at least that's what I
see in the current code on git. And kernel-drivers also provides

-- Sandro

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