On Fri, 2024-08-09 at 17:49 +0200, Andrew Ammerlaan wrote:
> (de)compressing modules changes the path of the module files so we need to
> run depmod to ensure that tools such as modprobe/modinfo work.
> 
> Note that depmod is often, but *not* always, run by sys-kernel/installkernel.
> Systemd installs a hook to do this, but there is no equivalent on openrc
> systems. So instead just ensure that the tree of modules we install is
> consistent here in the eclass.
> 
> Signed-off-by: Andrew Ammerlaan <andrewammerlaan@gentoo.org>
> ---
>  eclass/kernel-install.eclass | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/eclass/kernel-install.eclass b/eclass/kernel-install.eclass
> index 496e258815d2..930640188c26 100644
> --- a/eclass/kernel-install.eclass
> +++ b/eclass/kernel-install.eclass
> @@ -796,6 +796,9 @@ kernel-install_compress_modules() {
>  		find "${ED}/lib/modules/${KV_FULL}" -name '*.ko' -print0 |
>  			xargs -0 -P "$(makeopts_jobs)" -n 128 "${compress[@]}"
>  		assert "Compressing kernel modules failed"
> +
> +		# Module paths have changed, run depmod
> +		depmod --all --basedir "${ED}" ${KV_FULL} || die
>  	fi
>  }
>  

Are you actually supposed to run it on ED and not EROOT?  Won't that
cause file collisions (even if we circumvent them via CONFIG_PROTECT).

-- 
Best regards,
Michał Górny