diff --git a/install/distr.py b/install/distr.py
index be23d8e..545168b 100644
--- a/install/distr.py
+++ b/install/distr.py
@@ -458,7 +458,7 @@ class Distributive(object):
                               PartitionDistributive:"partdir"}
                 extname = mapExtName.get(distr.__class__,"")
                 image = distr.convertToDirectory()
-            except Exception,e:
+            except Exception as e:
                 if distr:
                     distr.close()
                 return {}.copy()
diff --git a/install/variables/X11.py b/install/variables/X11.py
index cd8ef73..3634b02 100644
--- a/install/variables/X11.py
+++ b/install/variables/X11.py
@@ -26,6 +26,7 @@ from calculate.lib.utils.common import (getVideoFromXorgLog,
                 getAvailableVideo, getValueFromCmdLine,
                 getCompositeFromXorgconf, getVideoFromModules,
                 getVideoFromVendor,getInstalledVideo)
+from calculate.install.distr import DistributiveError
 
 from calculate.lib.cl_lang import setLocalTranslate
 setLocalTranslate('cl_install3',sys.modules[__name__])
@@ -109,10 +110,13 @@ class VariableOsInstallX11VideoAvailable(VideoVariable):
         image = self.Get('cl_image')
         if image:
             with image as distr:
-                distrPath = image.getDirectory()
-                if isPkgInstalled('xorg-server',prefix=distrPath):
-                    return sorted(filter(self.supported.__contains__,
-                           getAvailableVideo(prefix=distrPath)))+['other']
+                try:
+                    distrPath = image.getDirectory()
+                    if isPkgInstalled('xorg-server',prefix=distrPath):
+                        return sorted(filter(self.supported.__contains__,
+                               getAvailableVideo(prefix=distrPath)))+['other']
+                except DistributiveError as e:
+                    pass
         return []
 
 class VariableOsX11KmsVideoDrv(ReadonlyVariable):
diff --git a/install/variables/kernel.py b/install/variables/kernel.py
index 9f8c395..2e844ac 100644
--- a/install/variables/kernel.py
+++ b/install/variables/kernel.py
@@ -30,6 +30,7 @@ from calculate.lib.utils.common import (getKernelUid,getTupleVersion,
     getValueFromCmdLine)
 from calculate.lib.utils.device import getUdevDeviceInfo
 from itertools import *
+from calculate.install.distr import DistributiveError
 
 class VariableOsInstallKernelScheduler(Variable):
     """
@@ -85,11 +86,14 @@ class VariableOsInstallKernelBfqSet(ReadonlyVariable):
         image = self.Get('cl_image')
         if image:
             with image as distr:
-                distrPath = image.getDirectory()
-                kernelConfig = path.join(distrPath,"usr/src/linux/.config")
-                if filter(lambda x:"CONFIG_IOSCHED_BFQ=y" in x,
-                    readLinesFile(kernelConfig)):
-                    return "on"
+                try:
+                    distrPath = image.getDirectory()
+                    kernelConfig = path.join(distrPath,"usr/src/linux/.config")
+                    if filter(lambda x:"CONFIG_IOSCHED_BFQ=y" in x,
+                        readLinesFile(kernelConfig)):
+                        return "on"
+                except DistributiveError as e:
+                    return "off"
         return "off"
 
 class VariableOsInstallKernelAttr(Variable):
diff --git a/install/variables/net.py b/install/variables/net.py
index a7f2df2..d5cec22 100644
--- a/install/variables/net.py
+++ b/install/variables/net.py
@@ -35,6 +35,7 @@ from calculate.lib.utils.portage import isPkgInstalled
 from operator import itemgetter
 from itertools import *
 import hashlib
+from calculate.install.distr import DistributiveError
 
 class NetHelper:
     """
@@ -649,11 +650,14 @@ class VariableOsInstallNetConfAvailable(NetHelper,Variable):
         image = self.Get('cl_image')
         if image:
             with image as distr:
-                distrPath = image.getDirectory()
-                return map(itemgetter(0,2),
-                       filter(lambda x:not x[1] or isPkgInstalled(x[1],
-                                           prefix=distrPath),
-                       mapNetConf))
+                try:
+                    distrPath = image.getDirectory()
+                    return map(itemgetter(0,2),
+                           filter(lambda x:not x[1] or isPkgInstalled(x[1],
+                                               prefix=distrPath),
+                           mapNetConf))
+                except DistributiveError as e:
+                    pass
         return sorted(map(itemgetter(0,2),mapNetConf[-1:]),key=itemgetter(1))
 
 class VariableOsInstallNetConf(NetHelper,Variable):