diff --git a/xorriso/emulators.c b/xorriso/emulators.c
index d42a6af3..6d353c9e 100644
--- a/xorriso/emulators.c
+++ b/xorriso/emulators.c
@@ -639,23 +639,19 @@ no_volunteer:;
 
 
 int Xorriso_genisofs_add_boot(struct XorrisO *xorriso, char *whom,
-                              int *option_b, int *no_emul_boot, int flag)
+                              int *option_b, int *emul_boot, int flag)
 {
  int ret;
 
- if(*option_b && !*no_emul_boot) {
-   xorriso->boot_image_bin_path[0]= 0;
-   sprintf(xorriso->info_text,
-        "-as %s: Option -%s is supported only if option -no-emul-boot is given",
-        whom, (xorriso->boot_platform_id == 0xef ? "e" : "b"));
-   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
-   return(0);
- }
+ if(*option_b)
+   xorriso->boot_image_emul= *emul_boot;
+ else
+   xorriso->boot_image_emul= 0;
  ret= Xorriso_attach_boot_image(xorriso, 0);
  if(ret <= 0)
    xorriso->boot_image_bin_path[0]= 0;
  *option_b= 0;
- *no_emul_boot= 1;
+ *emul_boot= 2;
  return(ret);
 }
 
@@ -724,6 +720,7 @@ int Xorriso_genisofs_help(struct XorrisO *xorriso, int flag)
 "                              Set El Torito boot catalog name",
 "  --boot-catalog-hide         Hide boot catalog from ISO9660/RR and Joliet",
 "  -boot-load-size #           Set numbers of load sectors",
+"  -hard-disk-boot             Boot image is a hard disk image",
 "  -no-emul-boot               Boot image is 'no emulation' image",
 "  -boot-info-table            Patch boot image with info table",
 "  -G FILE, -generic-boot FILE Set generic boot image name",
@@ -843,7 +840,7 @@ int Xorriso_genisofs(struct XorrisO *xorriso, char *whom,
                      int argc, char **argv, int flag)
 {
  int ret, i, j, was_path= 0, was_other_option= 0, mem_graft_points, mem;
- int do_print_size= 0, fd, idx, iso_level= 0, no_emul_boot= 0;
+ int do_print_size= 0, fd, idx, iso_level= 0, emul_boot= 2;
  int option_b= 0, was_failure= 0, fret, lower_r= 0, zero= 0;
  int dir_mode= -1, file_mode= -1, count;
  mode_t mode_and, mode_or;
@@ -1211,6 +1208,7 @@ not_enough_args:;
      i++;
      /* was already handled in first argument scan */;
    } else if(strcmp(argv[i], "-no-emul-boot")==0 ||
+             strcmp(argv[i], "-hard-disk-boot")==0 ||
              strcmp(argv[i], "-boot-info-table")==0 ||
              strncmp(argv[i], "isolinux_mbr=", 13)==0 ||
              strcmp(argv[i], "-eltorito-alt-boot")==0 ||
@@ -1411,7 +1409,9 @@ problem_handler_2:;
  for(j= 0; j < delay_opt_count; j++) {
    i= delay_opt_list[j];
    if(strcmp(argv[i], "-no-emul-boot")==0) {
-     no_emul_boot= 1;
+     emul_boot= xorriso->boot_image_emul= 0;
+   } else if(strcmp(argv[i], "-hard-disk-boot")==0) {
+     emul_boot= xorriso->boot_image_emul= 1;
    } else if(strcmp(argv[i], "-boot-info-table")==0) {
      xorriso->patch_isolinux_image= 1;
    } else if(strcmp(argv[i], "-b") == 0 ||
@@ -1422,12 +1422,13 @@ problem_handler_2:;
      if(strcmp(argv[i - 1], "--efi-boot") == 0) {
        if(xorriso->boot_image_bin_path[0]) {
          ret= Xorriso_genisofs_add_boot(xorriso, whom,
-                                        &option_b, &no_emul_boot, 0);
+                                        &option_b, &emul_boot, 0);
          if(ret <= 0)
            goto problem_handler_boot;
        }
        boot_path= xorriso->boot_image_bin_path;
        xorriso->boot_efi_default= 1;
+       emul_boot= xorriso->boot_image_emul= 0;
      } else {
        boot_path= xorriso->boot_image_bin_path; 
        if(strcmp(argv[i - 1], "-e") == 0)
@@ -1436,6 +1437,7 @@ problem_handler_2:;
          xorriso->boot_platform_id= 0x00;
        xorriso->boot_efi_default= 0;
        option_b= 1;
+       xorriso->boot_image_emul= emul_boot;
      }
      boot_path[0]= 0;
      if(argv[i][0] != '/')
@@ -1445,8 +1447,9 @@ problem_handler_2:;
        goto ex;
      if(xorriso->boot_efi_default && xorriso->boot_image_bin_path[0]) {
        option_b= 0;
+       emul_boot= 0;
        ret= Xorriso_genisofs_add_boot(xorriso, whom,
-                                      &option_b, &no_emul_boot, 0);
+                                      &option_b, &emul_boot, 0);
        if(ret <= 0)
          goto problem_handler_boot;
      }
@@ -1479,7 +1482,7 @@ problem_handler_2:;
        goto problem_handler_boot;
    } else if(strcmp(argv[i], "-eltorito-alt-boot")==0) {
      ret= Xorriso_genisofs_add_boot(xorriso, whom,
-                                    &option_b, &no_emul_boot, 0);
+                                    &option_b, &emul_boot, 0);
      if(ret <= 0)
        goto problem_handler_boot;
    } else if(strcmp(argv[i], "--embedded-boot")==0 ||
@@ -1511,7 +1514,7 @@ problem_handler_boot:;
  if(with_boot_image && with_cat_path == 0)
    strcpy(xorriso->boot_image_cat_path, "/boot.catalog");
  if(xorriso->boot_image_bin_path[0]) {
-   ret= Xorriso_genisofs_add_boot(xorriso, whom, &option_b, &no_emul_boot, 0);
+   ret= Xorriso_genisofs_add_boot(xorriso, whom, &option_b, &emul_boot, 0);
    if(ret <= 0)
      goto ex;
  }
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 0e4ed6f5..f0db21e7 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2010.08.18.181640"
+#define Xorriso_timestamP "2010.08.18.181855"