>>> Beginning update of the overlays ...
Updating the Custom Kernels Overlay
Traceback (most recent call last):
  File "/usr/bin/olmgr", line 597, in ?
    main(sys.argv[1:])
  File "/usr/bin/olmgr", line 592, in main
    eval(callbacks[x]['callback'])
  File "<string>", line 0, in ?
  File "/usr/bin/olmgr", line 231, in update
    svn.update(x['overlay_path'])
pysvn._pysvn.ClientError: Working copy '/usr/local/overlays/kernels_overlay' locked