Fix mounting partition as iso image.

pym/cl_distr.py

@@ -1181,7 +1181,13 @@ class IsoDistributive(Distributive):
     def _mountIso(self,file,directory):
         if self.file != self.mdirectory:
             self._makeDirectory(directory)
-            self._mountToDirectory(file,directory,mountopts="-o loop")
+            tf = typeFile(magic=0x6)
+            ftype = tf.getMType(file)
+            if "block special" in ftype:
+                mopts = ""
+            else:
+                mopts = "-o loop"
+            self._mountToDirectory(file,directory,mountopts=mopts)
 
     def _umountIso(self,directory):
         if self.file != self.mdirectory: