Description of problem:
During packages installed I entered the root password then hit TAB to confirm it. Upon pressing Tab, the error happened.

Version-Release number of selected component:
anaconda-18.29.2

Additional info:
libreport version: 2.0.17
cmdline:        /usr/bin/python  /sbin/anaconda
kernel:         3.6.6-3.fc18.x86_64

description:
:The following was filed automatically by anaconda:
:anaconda 18.29.2 exception report
:Traceback (most recent call first):
:  File "/usr/lib64/python2.7/site-packages/pyanaconda/storage/__init__.py", line 2794, in mountFilesystems
:    if errorHandler.cb(e, device) == ERROR_RAISE:
:  File "/usr/lib64/python2.7/site-packages/pyanaconda/storage/__init__.py", line 1643, in mountFilesystems
:    readOnly=readOnly, skipRoot=skipRoot)
:  File "/usr/lib64/python2.7/site-packages/pyanaconda/storage/__init__.py", line 194, in turnOnFilesystems
:    skipRoot=False)
:  File "/usr/lib64/python2.7/site-packages/pyanaconda/install.py", line 113, in doInstall
:    turnOnFilesystems(storage)
:  File "/usr/lib64/python2.7/threading.py", line 504, in run
:    self.__target(*self.__args, **self.__kwargs)
:  File "/usr/lib64/python2.7/site-packages/pyanaconda/threads.py", line 91, in run
:    threading.Thread.run(self, *args, **kwargs)
:UnboundLocalError: local variable 'e' referenced before assignment