Fix installaion with mounted ntfs-3g.

pym/cl_distr.py

@@ -759,6 +759,11 @@ class PartitionDistributive(Distributive):
     def _mountPartition(self,partition,directory,opts=""):
         """Mount partition to directory"""
         self._makeDirectory(directory)
+        if "ntfs" in opts:
+            source_dir = isMount(partition)
+            if source_dir:
+                self._mountToDirectory(source_dir,directory,"-o bind")
+                return
         self._mountToDirectory(partition,directory,opts)
 
     def _umountPartition(self,directory):