diff --git a/pym/cl_fill_install.py b/pym/cl_fill_install.py
index 8eb1f73..eea5585 100644
--- a/pym/cl_fill_install.py
+++ b/pym/cl_fill_install.py
@@ -632,10 +632,10 @@ class fillVars(object, glob_attr):
     def get_os_install_kernel_attr(self):
         """Kernel attributes"""
         # on usb-hdd install must be "delay=5"
+        attr = ""
         if self.Get('os_install_root_type') == 'usb-hdd':
-            return " scandelay=5"
-        else:
-            return ""
+            attr = " scandelay=5"
+
 
     def get_os_install_kernel_resume(self):
         """install kernel resume parameter"""
diff --git a/pym/cl_install.py b/pym/cl_install.py
index 11d95a0..4e2aaff 100644
--- a/pym/cl_install.py
+++ b/pym/cl_install.py
@@ -1534,13 +1534,6 @@ class cl_install(color_print, SignalInterrupt):
             else:
                 self.printERROR(_("Cann't found disk '%s'")%mbrDisk)
                 return False
-        mbr = self.clVars.Get('os_install_mbr')
-        tableOnBootDisk = self.varSelect('os_device_table',
-                where="os_device_dev",eq='mbr')
-        if not tableOnBootDisk:
-            self.printERROR(_("Disk '%s' without partition table cann't "
-              "contains boot record")%mbr)
-            return False
         return True
 
     def createListOptions(self):
@@ -2192,6 +2185,17 @@ class cl_install(color_print, SignalInterrupt):
             raise InstallError(_("Can not migrate users to new system"))
         self.printByResult(True)
 
+    def checkCorrectBootRecordDisk(self):
+        """Check boot record disk"""
+        mbr = self.clVars.Get('os_install_mbr')
+        tableOnBootDisk = self.varSelect('os_device_table',
+                where="os_device_dev",eq=mbr)
+        if not tableOnBootDisk:
+            self.printERROR(_("Disk '%s' without partition table cann't "
+              "contains boot record")%mbr)
+            return False
+        return True
+
     def installSystem(self, force=False, bootDisk=None, stdinReadPwd=False,
                       builder=False, flagSpinner=True, update=False):
         """install System by current variable enviroment"""
@@ -2199,6 +2203,8 @@ class cl_install(color_print, SignalInterrupt):
         targetDistr = None
         error = None
         distrCopy = False
+        if not self.checkCorrectBootRecordDisk():
+            return False
         try:
             rootPartdev = self.clVars.Get('os_install_root_dev')
             rootPartCmdList = filter(lambda x: x['dev']==rootPartdev,