diff --git a/pym/install/fs_manager.py b/pym/install/fs_manager.py
index 402f72a..b2c2fa2 100644
--- a/pym/install/fs_manager.py
+++ b/pym/install/fs_manager.py
@@ -27,7 +27,7 @@ setLocalTranslate('cl_install3',sys.modules[__name__])
 class FileSystemManager:
     """Convert dict install option"""
 
-    defaultOpt = ['noatime','nodiratime']
+    defaultOpt = ['noatime']
     defaultBindOpts = ['bind']
     supportFS = {
         'ext2': {'defaultopt': defaultOpt,
diff --git a/pym/install/variables/disk.py b/pym/install/variables/disk.py
index b0f99c1..17b0e2c 100644
--- a/pym/install/variables/disk.py
+++ b/pym/install/variables/disk.py
@@ -1423,8 +1423,6 @@ class VariableOsInstallDiskOptions(ReadonlyVariable):
         """TODO: get real options"""
         def postProcess(opt):
             l_opt = filter(None,opt.split(','))
-            if "noatime" in l_opt and not "nodiratime" in l_opt:
-                l_opt.append("nodiratime")
             return ",".join(l_opt)
                 
         diskOpts = dict(filter(lambda x:x[1],