diff --git a/octane/commands/upgrade_node.py b/octane/commands/upgrade_node.py
index 1d885008..8cc53d63 100644
--- a/octane/commands/upgrade_node.py
+++ b/octane/commands/upgrade_node.py
@@ -14,12 +14,10 @@ import logging
 import os.path
 
 from cliff import command as cmd
-from distutils import version
 from fuelclient.objects import environment as environment_obj
 from fuelclient.objects import node as node_obj
 
 from octane.handlers import upgrade as upgrade_handlers
-from octane.helpers import disk
 from octane import magic_consts
 from octane.util import docker
 from octane.util import env as env_util
@@ -48,7 +46,10 @@ def upgrade_node(env_id, node_ids, isolated=False, network_template=None):
                     orig_id, one_orig_id,
                 )
             one_orig_id = orig_id
-    patch_partition_generator(one_orig_id)
+    # NOTE(ogelbukh): patches and scripts copied to nailgun container
+    # for later use
+    copy_patches_folder_to_nailgun()
+
     call_handlers = upgrade_handlers.get_nodes_handlers(nodes, env, isolated)
     call_handlers('preupgrade')
     call_handlers('prepare')
@@ -63,16 +64,6 @@ def upgrade_node(env_id, node_ids, isolated=False, network_template=None):
     call_handlers('postdeploy')
 
 
-def patch_partition_generator(env_id):
-    """Update partitions generator for releases earlier than 6.0"""
-
-    env = environment_obj.Environment(env_id)
-    env_version = version.StrictVersion(env.data["fuel_version"])
-    if env_version < version.StrictVersion("6.0"):
-        copy_patches_folder_to_nailgun()
-        disk.update_partition_generator()
-
-
 def copy_patches_folder_to_nailgun():
     dest_folder = '/tmp'
     folder = os.path.join(magic_consts.CWD, 'patches')
diff --git a/octane/helpers/disk.py b/octane/helpers/disk.py
index 387ec1cc..ca0e58d5 100644
--- a/octane/helpers/disk.py
+++ b/octane/helpers/disk.py
@@ -39,12 +39,6 @@ def create_partition(disk_name, size, node):
              node=node)
 
 
-def update_partition_generator():
-    fname = 'update_release_partition_info.py'
-    command = ['python', os.path.join('/tmp', fname)]
-    docker.run_in_container('nailgun', command)
-
-
 def update_node_partition_info(node_id):
     fname = 'update_node_partition_info.py'
     command = ['python', os.path.join('/tmp', fname), str(node_id)]
diff --git a/octane/patches/update_release_partition_info.py b/octane/patches/update_release_partition_info.py
deleted file mode 100644
index 967ff86a..00000000
--- a/octane/patches/update_release_partition_info.py
+++ /dev/null
@@ -1,26 +0,0 @@
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-
-from nailgun.db import db
-from nailgun.db.sqlalchemy import models
-
-releases = db().query(models.Release)
-for rel in releases:
-    meta = rel.volumes_metadata
-    for volume in meta['volumes']:
-        if volume['min_size']['generator'] == 'calc_min_log_size':
-            volume['min_size']['generator'] = 'calc_gb_to_mb'
-            volume['min_size']['generator_args'] = [2]
-    db().query(models.Release).filter_by(id=rel.id).update(
-        {"volumes_metadata": meta})
-
-db().commit()