Fix optimization

pym/cl_install.py

@@ -1325,6 +1325,8 @@ class cl_install(color_print):
                              'CDROM.*Filesystems', 'DOS.*Filesystems',
                              'SCSI Transport']
         curConfig = dict(KernelConfig().getSectionParams(*importantSections))
+        if not self.clVars.Get('os_install_kernel_config'):
+            return True
         newConfig = KernelConfig( configFile=
             pathjoin(self.clVars.Get('cl_chroot_path'),
             'boot',self.clVars.Get('os_install_kernel_config')))