diff --git a/README b/README
index d65b1f1..8f43a46 100644
--- a/README
+++ b/README
@@ -4,7 +4,7 @@ INSTALL
 -------
 
 calculate-install needs the following library version installed, in order to run:
-    calculate-lib >= 2.2.15
+    calculate-lib >= 2.2.16
 
 To install calculate-install , just execute the install script 'setup.py'.
 Example:
diff --git a/pym/cl_fill_install.py b/pym/cl_fill_install.py
index fa40a2f..4baee20 100644
--- a/pym/cl_fill_install.py
+++ b/pym/cl_fill_install.py
@@ -857,7 +857,7 @@ class fillVars(object, glob_attr):
             videoVal = self.getValueFromCmdLine("calculate","video")
             videoVal = {'i915':'intel'}.get(videoVal,videoVal)
             if not isPkgInstalled('xorg-server',
-                                  prefix=self.Get('cl_chroot_path') or \
+                                  prefix=self.Get('cl_chroot_path')) or \
                 videoVal in available_drivers:
                 return videoVal
             return self.getVideoByDefault(available_drivers)
diff --git a/pym/cl_install.py b/pym/cl_install.py
index 4d065e9..756f62f 100644
--- a/pym/cl_install.py
+++ b/pym/cl_install.py
@@ -14,7 +14,7 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 
-__version__ = "2.2.15"
+__version__ = "2.2.16"
 __app__ = "calculate-install"
 
 import os
@@ -26,7 +26,7 @@ from cl_utils import runOsCommand,appendProgramToEnvFile, \
                         removeProgramToEnvFile,pathJoin, \
                         scanDirectory,process,getTupleVersion, \
                         detectDeviceForPartition,listDirectory, \
-                        cmpVersion
+                        cmpVersion,STDOUT
 from cl_vars_share import varsShare
 
 from cl_kernel_utils import KernelConfig,InitRamFs
@@ -1545,9 +1545,10 @@ class cl_install(color_print, SignalInterrupt):
             raise DistributiveError(_("Cann't install bootloader"))
 
         mbrDisk = self.clVars.Get('os_install_mbr')
+        process("sync").success()
         grubProcess = process(cmdGrubInstall,
-                              "--boot-directory=%s"%target.getBootDirectory(),
-                              "/dev/%s"%mbrDisk, "-f")
+                          "--boot-directory=%s"%target.getBootDirectory(),
+                          "/dev/%s"%mbrDisk, "-f", stderr=STDOUT)
         if grubProcess.failed():
             raise DistributiveError(_("Cann't install bootloader"))
 
diff --git a/setup.py b/setup.py
index 1da4539..f547a23 100755
--- a/setup.py
+++ b/setup.py
@@ -102,7 +102,7 @@ class cl_install_data(install_data):
 
 setup(
     name = 'calculate-install',
-    version = "2.2.15",
+    version = "2.2.16",
     description = "Calculate Linux installer",
     author = "Calculate Ltd.",
     author_email = "support@calculate.ru",