Comment 9 for bug 717129

Here's another one

mkfs.vfat 3.0.9 (31 Jan 2010)
Traceback (most recent call last):
  File "/work/linaro-image-tools/linaro-media-create", line 135, in <module>
    rootfs_uuid = get_uuid(root_partition)
  File "/work/linaro-image-tools/linaro_media_create/partitions.py", line 120, in get_uuid
    blkid_output, _ = proc.communicate()
  File "/usr/lib/python2.7/subprocess.py", line 737, in communicate
    self.wait()
  File "/work/linaro-image-tools/linaro_media_create/cmd_runner.py", line 62, in wait
    raise SubcommandNonZeroReturnValue(self._my_args, returncode)
linaro_media_create.cmd_runner.SubcommandNonZeroReturnValue: Sub process "['blkid', '-o', 'udev', '-p', '-c', '/dev/null', '/dev/sdc2']" returned a non-zero value: 2

Log attached

I'll try Zygmunt's branch