diff -ru grub-2.02~beta2.orig/util/grub-mkrescue.c grub-2.02~beta2/util/grub-mkrescue.c
--- grub-2.02~beta2.orig/util/grub-mkrescue.c	2013-12-24 11:40:31.000000000 -0500
+++ grub-2.02~beta2/util/grub-mkrescue.c	2016-04-18 01:47:51.125048970 -0400
@@ -370,6 +371,22 @@
   free (out);
 }
 
+/*
+ * Count strings of the specified value among the elements of the
+ * specified argument vector.
+ */
+static  int     detect_option (int argc, char **argv, const char *val)
+{
+  int option_cnt = 0;
+  int i;
+  for (i = 0; i < argc; i++) {
+    if (strcmp (argv[ i ], val) == 0) {
+      option_cnt++;
+    }
+  }
+  return (option_cnt);
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -387,6 +404,8 @@
   xorriso = xstrdup ("xorriso");
   label_font = grub_util_path_concat (2, pkgdatadir, "unicode.pf2");
 
+  /* Is "-R" among the arguments? */
+  int bigROption = detect_option (argc, argv, "-R");
   argp_parse (&argp, argc, argv, 0, 0, 0);
 
   if (!output_image)
@@ -843,7 +862,12 @@
   xorriso_push ("--protective-msdos-label");
   xorriso_push ("-o");
   xorriso_push (output_image);
-  xorriso_push ("-r");
+  if (! bigROption) {
+    /* Do not gratuitously suppress Rock Ridge ownership and
+       permission information in the final ISO image.  Insert a little
+       "-r" flag only if a big "-R" flag is not already present. */
+    xorriso_push ("-r");
+  }
   xorriso_push (iso9660_dir);
   xorriso_push ("--sort-weight");
   xorriso_push ("0");