From b90ded928bb4b5a5dd21ce65294f999c116d623a Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Sun, 26 Jul 2026 06:40:59 +0200
Subject: [PATCH] fix: Read boot image offset during legacy fallback (#1987)

---
 src/image.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/image.sh b/src/image.sh
index 5488fcb9..c2634d4f 100644
--- a/src/image.sh
+++ b/src/image.sh
@@ -1293,6 +1293,13 @@ extractBootImage() {
 
   rm -rf "$tmp" || true
 
+  local boot_info
+
+  if ! boot_info=$(isoinfo -d -i "$iso"); then
+    error "Failed to read boot image information from $desc ISO!"
+    return 1
+  fi
+
   offset=$(awk '/Bootoff / { print $NF; exit }' <<< "$boot_info")
 
   if [ -z "$offset" ]; then