The following was filed automatically by anaconda:
anaconda 15.19 exception report
Traceback (most recent call first):
  File "/usr/lib/python2.7/site-packages/pyanaconda/isys/__init__.py", line 142, in umount
    raise ValueError, "isys.umount() can only umount by mount point"
  File "/usr/lib/python2.7/site-packages/pyanaconda/image.py", line 201, in umountImage
    isys.umount(tree, removeDir=False)
  File "/usr/lib/python2.7/site-packages/pyanaconda/yuminstall.py", line 426, in _mountInstallImage
    umountImage(self.tree)
  File "/usr/lib/python2.7/site-packages/pyanaconda/yuminstall.py", line 466, in configBaseURL
    self._mountInstallImage()
  File "/usr/lib/python2.7/site-packages/pyanaconda/yuminstall.py", line 356, in setup
    self.configBaseURL()
  File "/usr/lib/python2.7/site-packages/pyanaconda/yuminstall.py", line 1231, in doBackendSetup
    self.ayum.setup()
  File "/usr/lib/python2.7/site-packages/pyanaconda/backend.py", line 199, in doBackendSetup
    if anaconda.backend.doBackendSetup(anaconda) == DISPATCH_BACK:
  File "/usr/lib/python2.7/site-packages/pyanaconda/dispatch.py", line 211, in moveStep
    rc = stepFunc(self.anaconda)
  File "/usr/lib/python2.7/site-packages/pyanaconda/dispatch.py", line 130, in gotoNext
    self.moveStep()
  File "/usr/lib/python2.7/site-packages/pyanaconda/gui.py", line 1347, in setScreen
    self.anaconda.dispatch.gotoNext()
  File "/usr/lib/python2.7/site-packages/pyanaconda/gui.py", line 1259, in nextClicked
    self.setScreen ()
ValueError: isys.umount() can only umount by mount point