Description of problem:
I added 2 drives after system install and created a raid1 on them for /home in my setup anaconda crashes the same if run directly or from a livecd. it seems myraid array is being detected but not initialised correctly. im really not doing anything at all. if i start the install disk and wait it will crash.

Version-Release number of selected component:
anaconda-19.30.8-1

The following was filed automatically by anaconda:
anaconda 19.30.8-1 exception report
Traceback (most recent call first):
  File "/usr/lib/python2.7/site-packages/blivet/devicelibs/mdraid.py", line 269, in name_from_md_node
    for link in os.listdir(md_dir):
  File "/usr/lib/python2.7/site-packages/blivet/devicetree.py", line 2196, in resolveDevice
    md_name = devicelibs.mdraid.name_from_md_node(devspec[5:])
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 2985, in parseFSTab
    options=options)
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 2908, in findExistingInstallations
    (mounts, swaps) = parseFSTab(devicetree, chroot=ROOT_PATH)
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 424, in reset
    self.roots = findExistingInstallations(self.devicetree)
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 144, in storageInitialize
    storage.reset()
  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)
OSError: [Errno 2] No such file or directory: '/dev/md'

Additional info:
cmdline:        /usr/bin/python  /sbin/anaconda
cmdline_file:   BOOT_IMAGE=/images/pxeboot/vmlinuz inst.stage2=hd:LABEL=Fedora\x2019-TC5\x20x86_64 quiet
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         3.9.5-301.fc19.x86_64
product:        Fedora
release:        Cannot get release name.
type:           anaconda
version:        19-TC5