Re: [PATCH v7] rpm-pkg: simplify installkernel %post

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On Mon, Jan 29, 2024 at 6:28 PM Jose Ignacio Tornos Martinez
<jtornosm@xxxxxxxxxx> wrote:
>
> The new installkernel application that is now included in systemd-udev
> package allows installation although destination files are already present
> in the boot directory of the kernel package, but is failing with the
> implemented workaround for the old installkernel application from grubby
> package.
>
> For the new installkernel application, as Davide says:
> <<The %post currently does a shuffling dance before calling installkernel.
> This isn't actually necessary afaict, and the current implementation
> ends up triggering downstream issues such as
> https://github.com/systemd/systemd/issues/29568
> This commit simplifies the logic to remove the shuffling. For reference,
> the original logic was added in commit 3c9c7a14b627("rpm-pkg: add %post
> section to create initramfs and grub hooks").>>
>
> But we need to keep the old behavior as well, because the old installkernel
> application from grubby package, does not allow this simplification and
> we need to be backward compatible to avoid issues with the different
> packages.
>
> Mimic Fedora shipping process and store vmlinuz, config amd System.map
> in the module directory instead of the boot directory. In this way, we will
> avoid the commented problem for all the cases, because the new destination
> files are not going to exist in the boot directory of the kernel package.
>
> Replace installkernel tool with kernel-install tool, because the latter is
> more complete.
>
> Besides, after installkernel tool execution, check to complete if the
> correct package files vmlinuz, System.map and config files are present
> in /boot directory, and if necessary, copy manually for install operation.
> In this way, take into account if  files were not previously copied from
> /usr/lib/kernel/install.d/* scripts and if the suitable files for the
> requested package are present (it could be others if the rpm files were
> replace with a new pacakge with the same release and a different build).
>
> Tested with Fedora 38, Fedora 39, RHEL 9, Oracle Linux 9.3,
> openSUSE Tumbleweed and openMandrive ROME, using dnf/zypper and rpm tools.
>
> cc: stable@xxxxxxxxxxxxxxx
> Co-Developed-by: Davide Cavalca <dcavalca@xxxxxxxx>
> Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@xxxxxxxxxx>
> ---
> V1 -> V2:
> - Complete to be backward compatible with the previous installkernel
> application.
> V2 -> V3:
> - Follow the suggestions from Masahiro Yamada and change the installation
> destination to avoid problems instead of checking the package.
> V3 -> V4:
> - Make the patch applicable to linux-kbuild/for-next (ia64 support was
> already removed).
> V4 -> V5:
> - Complete for other Linux distributions.
> V5 -> V6
> - Simplify and do more compatible checks when copied files wants to be
>   replaced.
> - Remove %preun because it will be better done with another patch.
> - Add indentation and quotation.
> V6 -> V7
> - Simplify check to copy (cpm --silent return error if file doesn't exist).
> - Limit indientation to modifications.


Applied to linux-kbuild/fixes. Thanks.


-- 
Best Regards
Masahiro Yamada





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