dmraid

util/getroot.c

@@ -77,10 +77,15 @@
 grub_disk_addr_t
 grub_util_find_partition_start (const char *dev)
 {
+#if GRUB_UTIL_FD_STAT_IS_FUNCTIONAL
+  struct stat st;
   grub_disk_addr_t partition_start;
-  if (grub_util_device_is_mapped (dev)
-      && grub_util_get_dm_node_linear_info (dev, 0, 0, &partition_start))
+
+  if (stat (dev, &st) >= 0
+      && grub_util_device_is_mapped_stat (&st)
+      && grub_util_get_dm_node_linear_info (st.st_rdev, 0, 0, &partition_start))
     return partition_start;
+#endif
 
   return grub_util_find_partition_start_os (dev);
 }