--- GrubConf.py.orig	2007-10-04 17:02:35.000000000 -0300
+++ GrubConf.py	2007-10-04 17:03:59.000000000 -0300
@@ -101,7 +101,7 @@
 
         if self.commands.has_key(com):
             if self.commands[com] is not None:
-                exec("%s = r\"%s\"" %(self.commands[com], arg.strip()))
+                setattr(self, self.commands[com], arg.strip())
             else:
                 logging.info("Ignored image directive %s" %(com,))
         else: