[PATCH 2/2] Warn if systemd-firstboot misses configurations

["T. Schaffner" <tobias.schaffner@siemens.com>]

From: Tobias Schaffner <tobias.schaffner@siemens.com>

systemd-firstboot checks the existence of different system configurations
like locale or hostname. Debian packages may trust that these configurations
are in the location that systemd-firstboot enforced.

Warn the user in the image postproc step if systemd-firstboot misses any
configurations in the image.

Signed-off-by: Tobias Schaffner <tobias.schaffner@siemens.com>
---
 meta/classes/image-postproc-extension.bbclass | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/meta/classes/image-postproc-extension.bbclass b/meta/classes/image-postproc-extension.bbclass
index 942b929..f7f762c 100644
--- a/meta/classes/image-postproc-extension.bbclass
+++ b/meta/classes/image-postproc-extension.bbclass
@@ -88,5 +88,10 @@ image_posprocess_disable_systemd_firstboot() {
 
     if dpkg --compare-versions "$SYSTEMD_VERSION" "ge" "251"; then
         sudo chroot '${ROOTFSDIR}' systemctl mask systemd-firstboot
+        if ! cmd_output=$(sudo chroot '${ROOTFSDIR}' systemd-firstboot \
+               --prompt --welcome=false </dev/null 2>/dev/null); then
+            bbwarn "Your image is not configured completely according to systemd-firstboot."
+            bbwarn "It prompted: \"${cmd_output}\""
+        fi
     fi
 }
-- 
2.34.1