fix partition module names when /boot is on diskfilter

/usr/local/grub2/sbin/grub-install: info: grub-mkimage --directory '/usr/local/grub2/lib/grub/i386-pc' --prefix '(mduuid/e6d1dcf06cea72140bafae74a8677f36)/grub' --output '/boot/grub/i386-pc/core.img' --format 'i386-pc' --compression 'auto'  'ext2' 'msdos' 'msdos' 'diskfilter' 'mdraid1x' 'biosdisk'
.
/usr/local/grub2/sbin/grub-install: error: cannot open `/usr/local/grub2/lib/grub/i386-pc/msdos.mod': No such file or directory.

Introduce common helper for both diskfilter and non-diskfilter case that
converts partition map names into module names.

ChangeLog

@@ -1,3 +1,9 @@
+2013-12-07  Andrey Borzenkov <arvidjaar@gmail.com>
+
+	* util/grub-install.c (push_partmap_module): Add helper to convert
+	partmap names to module names and use it in probe_mods(). Fixes
+	failure to find partmap modules in diskfilter case.
+
 2013-12-07  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* configure.ac: Make unifont mandatory on coreboot.

util/grub-install.c

@@ -322,6 +322,21 @@ probe_raid_level (grub_disk_t disk)
   return ((struct grub_diskfilter_lv *) disk->data)->segments->type;
 }
 
+static void
+push_partmap_module (const char *map)
+{
+  char buf[50];
+
+  if (strcmp (map, "openbsd") == 0 || strcmp (map, "netbsd") == 0)
+    {
+      grub_install_push_module ("part_bsd");
+      return;
+    }
+
+  snprintf (buf, sizeof (buf), "part_%s", map);
+  grub_install_push_module (buf);
+}
+
 static void
 probe_mods (grub_disk_t disk)
 {
@@ -333,21 +348,11 @@ probe_mods (grub_disk_t disk)
     grub_util_info ("no partition map found for %s", disk->name);
 
   for (part = disk->partition; part; part = part->parent)
-    {
-      char buf[50];
-      if (strcmp (part->partmap->name, "openbsd") == 0
-	  || strcmp (part->partmap->name, "netbsd") == 0)
-	{
-	  grub_install_push_module ("part_bsd");
-	  continue;
-	}
-      snprintf (buf, sizeof (buf), "part_%s", part->partmap->name);
-      grub_install_push_module (buf);
-    }
+    push_partmap_module (part->partmap->name);
 
   if (disk->dev->id == GRUB_DISK_DEVICE_DISKFILTER_ID)
     {
-      grub_diskfilter_get_partmap (disk, grub_install_push_module);
+      grub_diskfilter_get_partmap (disk, push_partmap_module);
       have_abstractions = 1;
     }
 
@@ -1098,7 +1103,13 @@ main (int argc, char *argv[])
     {
       if (install_device[0] == '('
 	  && install_device[grub_strlen (install_device) - 1] == ')')
-	install_drive = xstrdup (install_device);
+        {
+	  
+	  size_t len = grub_strlen (install_device) - 2;
+	  install_drive = xmalloc (len + 1);
+	  memcpy (install_drive, install_device + 1, len);
+	  install_drive[len] = '\0';
+        }
       else
 	{
 	  grub_util_pull_device (install_device);

util/grub-setup.c

@@ -209,9 +209,23 @@ DEVICE must be an OS device (e.g. /dev/sda)."),
   NULL, help_filter, NULL
 };
 
+static char *
+get_device_name (char *dev)
+{
+  size_t len = strlen (dev);
+
+  if (dev[0] != '(' || dev[len - 1] != ')')
+    return 0;
+
+  dev[len - 1] = '\0';
+  return dev + 1;
+}
+
 int
 main (int argc, char *argv[])
 {
+  char *root_dev = NULL;
+  char *dest_dev = NULL;
   struct arguments arguments;
 
   grub_util_host_init (&argc, &argv);
@@ -250,11 +264,34 @@ main (int argc, char *argv[])
   grub_mdraid1x_init ();
   grub_lvm_init ();
 
+  dest_dev = get_device_name (arguments.device);
+  if (! dest_dev)
+    {
+      /* Possibly, the user specified an OS device file.  */
+      dest_dev = grub_util_get_grub_dev (arguments.device);
+      if (! dest_dev)
+        {
+          char *program = xstrdup(program_name);
+          fprintf (stderr, _("Invalid device `%s'.\n"), arguments.device);
+          argp_help (&argp, stderr, ARGP_HELP_STD_USAGE, program);
+          free(program);
+          exit(1);
+        }
+      grub_util_info ("transformed OS device `%s' into GRUB device `%s'",
+                      arguments.device, dest_dev);
+    }
+  else
+    {
+      /* For simplicity.  */
+      dest_dev = xstrdup (dest_dev);
+      grub_util_info ("Using `%s' as GRUB device", dest_dev);
+    }
+
   /* Do the real work.  */
   GRUB_SETUP_FUNC (arguments.dir ? : DEFAULT_DIRECTORY,
 		   arguments.boot_file ? : DEFAULT_BOOT_FILE,
 		   arguments.core_file ? : DEFAULT_CORE_FILE,
-		   arguments.device, arguments.force,
+		   dest_dev, arguments.force,
 		   arguments.fs_probe, arguments.allow_floppy);
 
   /* Free resources.  */
@@ -266,6 +303,8 @@ main (int argc, char *argv[])
   free (arguments.dir);
   free (arguments.dev_map);
   free (arguments.device);
+  free (root_dev);
+  free (dest_dev);
 
   return 0;
 }

util/setup.c

@@ -247,13 +247,12 @@ identify_partmap (grub_disk_t disk __attribute__ ((unused)),
 void
 SETUP (const char *dir,
        const char *boot_file, const char *core_file,
-       const char *dev, int force,
+       const char *dest, int force,
        int fs_probe, int allow_floppy)
 {
   char *core_path;
   char *boot_img, *core_img, *boot_path;
   char *root = 0;
-  char *dest = 0;
   size_t boot_size, core_size;
 #ifdef GRUB_SETUP_BIOS
   grub_uint16_t core_sectors;
@@ -270,28 +269,6 @@ SETUP (const char *dir,
 #endif
   bl.last_length = 0;
 
-  {
-    size_t len = strlen (dev);
-
-    if (len > 2 && dev[0] == '(' && dev[len - 1] == ')')
-      {
-	dest = xmalloc (len - 1);
-	strncpy (dest, dev + 1, len - 2);
-	dest[len - 2] = '\0';
-      }
-  }
-
-  if (! dest)
-    {
-      /* Possibly, the user specified an OS device file.  */
-      dest = grub_util_get_grub_dev (dev);
-      if (! dest)
-          grub_util_error (_("Invalid device `%s'.\n"), dev);
-      grub_util_info ("transformed OS device `%s' into GRUB device `%s'",
-                      dev, dest);
-    }
-
-
   /* Read the boot image by the OS service.  */
   boot_path = grub_util_get_path (dir, boot_file);
   boot_size = grub_util_get_image_size (boot_path);
@@ -326,7 +303,6 @@ SETUP (const char *dir,
   dest_dev = grub_device_open (dest);
   if (! dest_dev)
     grub_util_error ("%s", grub_errmsg);
-  free (dest);
 
   core_dev = dest_dev;