diff --git a/install/1merge/sudo/sudoers b/install/1merge/sudo/sudoers
index 961a5bf..25c4cde 100644
--- a/install/1merge/sudo/sudoers
+++ b/install/1merge/sudo/sudoers
@@ -1,4 +1,4 @@
-# Calculate comment=#
+# Calculate comment=# chmod=0400
 
 Defaults	env_reset
 #?os_install_root_type==livecd#
diff --git a/install/1system/calculate-install/calculate2.env b/install/1system/calculate-install/calculate2.env
index d83a0f6..27df9f5 100644
--- a/install/1system/calculate-install/calculate2.env
+++ b/install/1system/calculate-install/calculate2.env
@@ -6,6 +6,10 @@ os_install_dev_from = #-os_root_dev-#
 # NTP is a protocol designed to synchronize the clocks of computers over a network.
 os_install_ntp = #-os_install_ntp-#
 #os_root_type#
+#pkg(sys-apps/calculate-install)>2.2.17-r1&&os_root_type=hdd#
+# name of net manager which is used
+os_install_net_settings = #-os_install_net_conf-#
+#pkg#
 
 #?os_install_linux_ver>10.8.81#
 [main]
diff --git a/install/2laptop/lenovo/sudo/sudoers b/install/2laptop/lenovo/sudo/sudoers
index dc81e5e..f252dae 100644
--- a/install/2laptop/lenovo/sudo/sudoers
+++ b/install/2laptop/lenovo/sudo/sudoers
@@ -1,4 +1,4 @@
-# Calculate format=patch path=/etc
+# Calculate format=patch path=/etc chmod=0400
 <reg>(# BEGIN laptop configuration)
 .*(# END laptop configuration)</reg>
 <text>\1
diff --git a/install/2laptop/samsung/sudo/sudoers b/install/2laptop/samsung/sudo/sudoers
index ee88674..4b5b0f7 100644
--- a/install/2laptop/samsung/sudo/sudoers
+++ b/install/2laptop/samsung/sudo/sudoers
@@ -1,4 +1,4 @@
-# Calculate format=patch path=/etc
+# Calculate format=patch path=/etc chmod=0400
 <reg>(# BEGIN laptop configuration)
 .*(# END laptop configuration)</reg>
 <text>\1