patched a duplicate section bug

git-svn-id: https://www.ocp.inf.ethz.ch/svn/aos/trunk@5870 8c9fc860-2736-0410-a75d-ab315db34111
produce error output when failed to get file system factory

git-svn-id: https://www.ocp.inf.ethz.ch/svn/aos/trunk@5871 8c9fc860-2736-0410-a75d-ab315db34111