Version-Release number of selected component:
anaconda-20.18-1.fc20.x86_64

The following was filed automatically by anaconda:
anaconda 20.18-1 exception report
Traceback (most recent call first):
  File "/usr/lib64/python2.7/site-packages/parted/disk.py", line 213, in commit
    return self.__disk.commit()
  File "/usr/lib64/python2.7/site-packages/parted/decorators.py", line 41, in new
    ret = fn(*args, **kwds)
  File "/usr/lib/python2.7/site-packages/blivet/formats/disklabel.py", line 292, in commit
    self.partedDisk.commit()
  File "/usr/lib/python2.7/site-packages/blivet/formats/disklabel.py", line 271, in create
    self.commit()
  File "/usr/lib/python2.7/site-packages/blivet/deviceaction.py", line 471, in execute
    options=self.device.formatArgs)
  File "/usr/lib/python2.7/site-packages/blivet/devicetree.py", line 237, in processActions
    action.execute()
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 310, in doIt
    self.devicetree.processActions()
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 169, in turnOnFilesystems
    storage.doIt()
  File "/usr/lib64/python2.7/site-packages/pyanaconda/install.py", line 142, in doInstall
    turnOnFilesystems(storage, mountOnly=flags.flags.dirInstall)
  File "/usr/lib64/python2.7/threading.py", line 764, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/threads.py", line 168, in run
    threading.Thread.run(self, *args, **kwargs)
IOException: Partition(s) 2 on /dev/sdc have been written, but we have been unable to inform the kernel of the change, probably because it/they are in use.  As a result, the old partition(s) will remain in use.  You should reboot now before making further changes.

Additional info:
cmdline:        /usr/bin/python  /sbin/anaconda --liveinst --method=livecd:///dev/mapper/live-osimg-min --lang en_US.UTF-8
cmdline_file:   initrd=initrd0.img root=live:CDLABEL=Fedora-Live-Desktop-x86_64-20-Al rootfstype=auto ro rd.live.image quiet  rhgb rd.luks=0 rd.md=0 rd.dm=0  BOOT_IMAGE=vmlinuz0 
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         3.11.0-300.fc20.x86_64
other involved packages: pyparted-3.9-4.fc20.x86_64, python-libs-2.7.5-7.fc20.x86_64, python-blivet-0.20-1.fc20.noarch
product:        Fedora
release:        Fedora release 20 (Heisenbug)
type:           anaconda
version:        20

Potential duplicate: bug 964147