diff --git a/xCAT-server/lib/xcat/plugins/sles.pm b/xCAT-server/lib/xcat/plugins/sles.pm
index 164e6d46c..f69689a1e 100644
--- a/xCAT-server/lib/xcat/plugins/sles.pm
+++ b/xCAT-server/lib/xcat/plugins/sles.pm
@@ -1707,12 +1707,10 @@ erver, if so, stop it first and try again" ],
 sub using_dracut
 {
     my $rootimgdir = shift;
-    my $chkcmd = "chroot $rootimgdir/rootimg dracut --list-modules";
-    my $rc = system($chkcmd);
-    if ($rc) {
-        return 0;
-    } else {
+    if ( -f "$rootimgdir/rootimg/etc/dracut.conf" ) {
         return 1;
+    } else {
+        return 0;
     }
 }