stdoutdata can be None object

diff --git a/source/utils.py b/source/utils.py
index cb1bc4d..4f96fd2 100644 (file)
--- a/source/utils.py
+++ b/source/utils.py
@@ -148,7 +148,8 @@ def sysexec( cmd, log= None, fsck = False ):
         raise BootManagerException, "Interrupted by user"
 
     if log is not None:
-        log.write(stdoutdata)
+        if stdoutdata is not None:
+            log.write(stdoutdata)
 
     returncode = prog.wait()