From 9e58ef437d2efaef29d3a424973d6648c415090b Mon Sep 17 00:00:00 2001
From: Nobi <nobi@nobidev.com>
Date: Tue, 24 Jun 2025 19:08:26 +0700
Subject: Fix uuidgen warning if DMI doesn't have product_serial or it empty

---
 src/init/vyos-router | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/init/vyos-router b/src/init/vyos-router
index 5c88c0665..88fa573e0 100755
--- a/src/init/vyos-router
+++ b/src/init/vyos-router
@@ -420,7 +420,10 @@ gen_duid ()
         UUID=$(cat ${UUID_FILE} | tr -d -)
     fi
     if [ -z ${UUID} ]; then
-        UUID=$(uuidgen --sha1 --namespace @dns --name $(cat ${UUID_FILE_ALT}) | tr -d -)
+        file_alt="$(cat ${UUID_FILE_ALT})"
+        if [ -n "${file_alt}" ]; then
+          UUID=$(uuidgen --sha1 --namespace @dns --name ${file_alt} | tr -d -)
+        fi
     fi
     # Add DUID type4 (UUID) information
     DUID_TYPE="0004"
-- 
cgit v1.2.3