On Mon, 2023-12-11 at 08:43 +0100, Andrew Ammerlaan wrote:
> Patch is part of https://github.com/gentoo/gentoo/pull/34024
> 
> Best regards,
> Andrew
> 
>  From 03e17149eef9eba08f8c8bf32845c18106d32290 Mon Sep 17 00:00:00 2001
> From: Andrew Ammerlaan <andrewammerlaan@gentoo.org>
> Date: Mon, 11 Dec 2023 08:36:58 +0100
> Subject: [PATCH] kernel-install.eclass: fix test phase on systemd systems
> 
> On systemd systems the dracut systemd modules are included automatically.
> Systemd insists our dummy root has some valid /etc/os-release file, 
> otherwise
> it refuses the switch root operation. However, with this fix it still 
> does not
> boot up correctly on systemd systems, it gets stuck in an infinite boot 
> loop.
> Presumably the reason has something to do with our dummy root not having 
> a real
> systemd init to switch root to. We add the systemd dracut modules to the 
> omit
> list to prevent the problem and ensure the test phase behaves the same on
> systemd and non-systemd systems.
> 
> Signed-off-by: Andrew Ammerlaan <andrewammerlaan@gentoo.org>
> ---
>   eclass/kernel-install.eclass | 12 ++++++++++++
>   1 file changed, 12 insertions(+)
> 
> diff --git a/eclass/kernel-install.eclass b/eclass/kernel-install.eclass
> index b4d84f3986c0d..f2a6ec75f2a88 100644
> --- a/eclass/kernel-install.eclass
> +++ b/eclass/kernel-install.eclass
> @@ -231,6 +231,17 @@ kernel-install_create_qemu_image() {
>   	# some layout needed to pass dracut's usable_root() validation
>   	mkdir -p "${imageroot}"/{bin,dev,etc,lib,proc,root,sbin,sys} || die
>   	touch "${imageroot}/lib/ld-fake.so" || die
> +	# Initrd images with systemd require some os-release file
> +	cat <<-EOT >> "${imageroot}/etc/os-release" || die
> +	NAME=Gentoo
> +	ID=gentoo
> +	PRETTY_NAME="Gentoo Linux"
> +	ANSI_COLOR="1;32"
> +	HOME_URL="https://www.gentoo.org/"
> +	SUPPORT_URL="https://www.gentoo.org/support/"
> +	BUG_REPORT_URL="https://bugs.gentoo.org/"
> +	VERSION_ID="dist-kernel testing"
> +	EOT
> 

Can't we just copy it from host?

-- 
Best regards,
Michał Górny