New -boot_image bootspecs grub2_mbr= and grub2_boot_info=

xorriso/iso_img.c

@@ -433,7 +433,14 @@ int Xorriso_boot_item_status(struct XorrisO *xorriso, char *cat_path,
 
  is_default= ((patch_isolinux & 1) == 0 || bin_path[0] == 0 || (flag & 4));
  sprintf(line, "-boot_image %s boot_info_table=%s\n",
-         (patch_isolinux & 2) ? "grub" : form, patch_isolinux ? "on" : "off");
+               (patch_isolinux & 2) ? "grub" : form,
+               (patch_isolinux & 1) ? "on" : "off");
+ if(!(is_default && no_defaults))
+   Xorriso_status_result(xorriso,filter,fp,flag&2); 
+ 
+ is_default= ((patch_isolinux & 512) == 0 || bin_path[0] == 0 || (flag & 4));
+ sprintf(line, "-boot_image grub grub2_boot_info=%s\n",
+               (patch_isolinux & 512) ? "on" : "off");
  if(!(is_default && no_defaults))
    Xorriso_status_result(xorriso,filter,fp,flag&2); 
  
@@ -570,6 +577,8 @@ int Xorriso_boot_image_status(struct XorrisO *xorriso, char *filter, FILE *fp,
  if(ret < 0) /* == 0 is normal */
    {ret= 0; goto ex;}
 
+ /* >>> GRUB2 et.al. : report about system_area_disk_path */
+
  if(xorriso->boot_count == 0 && xorriso->boot_image_bin_path[0] == 0) {
 no_image:;
    if(xorriso->patch_isolinux_image & 1) {
@@ -633,7 +642,7 @@ no_image:;
        else
          media_type= 0;
        ret= Xorriso_boot_item_status(xorriso, xorriso->boot_image_cat_path,
-                  path, platform_id, patch & 1, media_type,
+                  path, platform_id, patch, media_type,
                   load_size, id_string, sel_crit, "any",
                   filter, fp, 16 | (flag & 3));
        if(ret <= 0)
@@ -707,6 +716,8 @@ int Xorriso__append_boot_params(char *line, ElToritoBootImage *bootimg,
            " , platform_id=0x%-2.2X ", (unsigned int) platform_id);
  if(el_torito_seems_boot_info_table(bootimg, 0))
    sprintf(line + strlen(line), " , boot_info_table=on");
+ if(el_torito_seems_boot_info_table(bootimg, 1))
+   sprintf(line + strlen(line), " , grub2_boot_info=on");
  return(1);
 }
 
@@ -1162,6 +1173,8 @@ int Xorriso_coordinate_system_area(struct XorrisO *xorriso, int sa_type,
       "MBR", "MIPS Big Endian Volume Header", "MIPS Little Endian Boot Block",
       "SUN Disk Label"};
 
+ /* >>> GRUB2: Take into respect GRUB2 patched MBR */;
+
  old_type= (xorriso->system_area_options & 0xfc) >> 2;
  old_options= xorriso->system_area_options & ~0xfc;
  if((old_type != 0 || old_options != 0) &&

xorriso/opts_a_c.c

@@ -869,6 +869,14 @@ treatment_patch:;
    else
      was_ok= 0;
 
+ } else if(strncmp(treatpt, "grub2_boot_info=", 16)==0) {
+   if(strcmp(treatpt + 16, "off") == 0)
+     xorriso->patch_isolinux_image= xorriso->patch_isolinux_image & ~512;
+   else if(strcmp(treatpt + 16, "on") == 0)
+     xorriso->patch_isolinux_image= xorriso->patch_isolinux_image | 512;
+   else
+     was_ok= 0;
+
  } else if(strncmp(treatpt, "load_size=", 10) == 0) {
    num= Scanf_io_size(treatpt + 10, 0);
    if(num < 512 && isolinux_grub) {
@@ -1118,6 +1126,25 @@ treatment_patch:;
 
 #endif /* ! Xorriso_with_isohybriD */
 
+ } else if(strncmp(treatpt, "grub2_mbr=", 9) == 0 &&
+           strcmp(formpt, "grub")==0) {
+
+   if(strcmp(treatpt + 9, "off") == 0)
+     xorriso->system_area_options&= ~0x4000;
+   else if(strcmp(treatpt + 9, "on") == 0)
+     xorriso->system_area_options=
+                                  (xorriso->system_area_options & ~2) | 0x4000;
+   else {
+     sprintf(xorriso->info_text,
+             "Unrecognized keyword with -boot_image %s %s",
+             form, treatment);
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+     sprintf(xorriso->info_text,
+             "Allowed with grub2_mbr= are: off , on");
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "HINT", 0);
+     {ret= 0; goto ex;}
+   }
+
  } else
    was_ok= 0;
 

xorriso/write_run.c

@@ -2365,7 +2365,7 @@ int Xorriso_set_isolinux_options(struct XorrisO *xorriso,
  }
 
  /* bit0 : 1=boot-info-table , bit2-7 : 1=EFI , 2=HFS+ , bit8 : 1=APM */
- patch_table = xorriso->patch_isolinux_image & 0x1fd;
+ patch_table = xorriso->patch_isolinux_image & 0x3fd;
  if((flag & 1) && num_boots > 1) {
    ret= el_torito_set_isolinux_options(boots[num_boots - 1], patch_table, 0);
    ret= (ret == 1); goto ex;
@@ -2374,7 +2374,7 @@ int Xorriso_set_isolinux_options(struct XorrisO *xorriso,
  /* Handle patching of first attached boot image or of imported boot images 
  */
  for(i= 0; i < num_boots; i++) {
-   patch_table = xorriso->patch_isolinux_image & 0x1fd;
+   patch_table = xorriso->patch_isolinux_image & 0x3fd;
    if(patch_table && !(flag & 1)) {
      if(!el_torito_seems_boot_info_table(boots[i], 0))
        patch_table&= ~1;

xorriso/xorriso_private.h

@@ -364,6 +364,7 @@ struct XorrisO { /* the global context of xorriso */
                               bit2-7= Mentioning in isohybrid GPT
                                       1=EFI, 2=HFS+
                               bit8= Mention in isohybrid Apple Partition Map
+                              bit9= GRUB2 boot provisions (patch at byte 1012)
                             */
  int boot_image_emul; /* 0=no emulation
                          1=emulation as hard disk
@@ -405,6 +406,14 @@ struct XorrisO { /* the global context of xorriso */
                                                    any other feature which
                                                    needs to have own MBR
                                                    partition entries.
+                                         bit14= Only with System area type 0
+                                               GRUB2 boot provisions:
+                                               Patch system area at byte 92 to
+                                               99 with 512-block address + 1
+                                               of the first boot image file.
+                                               Little-endian 8-byte.
+                                               Should be combined with
+                                               options bit0.
                                        */
  int patch_system_area;               /* Bits as of system_area_options.
                                          to be applied to the loaded system

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2013.04.13.064738"
+#define Xorriso_timestamP "2013.04.13.074117"