[fix] : Fixed the issue that don't save channel_dir

diff --git a/build.sh b/build.sh
index e1cff3e..54a9e6d 100755 (executable)
--- a/build.sh
+++ b/build.sh
@@ -540,6 +540,7 @@ prepare_rebuild() {
         _save_var iso_version
         _save_var iso_filename
         _save_var channel_name
+        _save_var channel_dir
 
         _write_rebuild_file "\n# Environment Info"
         _save_var install_dir