From d3b559f5e561750e6c50449b2ca84b40abeb492d Mon Sep 17 00:00:00 2001
From: Antonio Alvarez Feijoo <antonio.feijoo@suse.com>
Date: Fri, 4 Nov 2022 09:57:24 +0100
Subject: [PATCH] kernel-install/90-loaderentry: do not add multiple
 systemd.machine_id options

Do not unconditionally add a new systemd.machine_id command line option, first
check if it already exists with the expected value.

Fixes #25203

(cherry picked from commit 981502c5cc9ce32c3f77ff74aad87cd6f0da3b16)

Related #2138081
---
 src/kernel-install/90-loaderentry.install | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kernel-install/90-loaderentry.install b/src/kernel-install/90-loaderentry.install
index 743af33aa9..ea75e1b0d8 100755
--- a/src/kernel-install/90-loaderentry.install
+++ b/src/kernel-install/90-loaderentry.install
@@ -85,7 +85,7 @@ BOOT_OPTIONS="${BOOT_OPTIONS% }"
 # command line with the machine ID we use, so that the machine ID remains
 # stable, even during factory reset, in the initrd (where the system's machine
 # ID is not directly accessible yet), and if the root file system is volatile.
-if [ "$ENTRY_TOKEN" = "$MACHINE_ID" ]; then
+if [ "$ENTRY_TOKEN" = "$MACHINE_ID" ] && ! echo "$BOOT_OPTIONS" | grep -q "systemd.machine_id=$MACHINE_ID"; then
     BOOT_OPTIONS="$BOOT_OPTIONS systemd.machine_id=$MACHINE_ID"
 fi