Description of problem:
HTTP installation initialized by Grub Legacy. No idea why this happened. I've initialized probably at least 40 installation attempts in past 30 hours.I'm guessing these early crashes are happening only slightly less than half the time.
The following was filed automatically by anaconda:
anaconda 19.30.3-1 exception report
Traceback (most recent call first):
  File "/usr/lib/python2.7/site-packages/blivet/formats/fs.py", line 626, in unmount
    raise FSError("umount failed")
  File "/usr/lib/python2.7/site-packages/blivet/formats/fs.py", line 792, in teardown
    return self.unmount(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/blivet/devices.py", line 745, in _preTeardown
    self.format.teardown()
  File "/usr/lib/python2.7/site-packages/blivet/devices.py", line 757, in teardown
    if not self._preTeardown(recursive=recursive):
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 2803, in findExistingInstallations
    device.teardown()
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 420, in reset
    self.roots = findExistingInstallations(self.devicetree)
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 140, in storageInitialize
    storage.reset()
  File "/usr/lib/python2.7/threading.py", line 764, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib/python2.7/site-packages/pyanaconda/threads.py", line 168, in run
    threading.Thread.run(self, *args, **kwargs)
FSError: umount failed

Version-Release number of selected component:
anaconda-19.30.3-1

Additional info:
reporter:       libreport-2.1.4
cmdline:        /usr/bin/python  /sbin/anaconda
cmdline_file:   stage2=hd:/dev/sda13:/squashfs.img repo=http://alt.fedoraproject.org/pub/alt/stage/19-TC3/Fedora/i386/os selinux=0 ip=192.168.0.62::192.168.0.50:255.255.255.0:kt880::none nameserver=192.168.0.50 video=1152x864 vga=794 noapic resolution='1280x960' splash=verbose rd.luks=0 rd.md=0 rd.dm=0 nousb nofirewire noipv6
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         3.9.4-301.fc19.i686
product:        Fedora
release:        Cannot get release name.
type:           anaconda
version:        19

Truncated backtrace:
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/pyanaconda/threads.py", line 168, in run
    threading.Thread.run(self, *args, **kwargs)
  File "/usr/lib/python2.7/threading.py", line 764, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 140, in storageInitialize
    storage.reset()
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 420, in reset
    self.roots = findExistingInstallations(self.devicetree)
  File "/usr/lib/python2.7/site-packages/blivet/__init__.py", line 2803, in findExistingInstallations
    device.teardown()
  File "/usr/lib/python2.7/site-packages/blivet/devices.py", line 757, in teardown
    if not self._preTeardown(recursive=recursive):
  File "/usr/lib/python2.7/site-packages/blivet/devices.py", line 745, in _preTeardown
    self.format.teardown()
  File "/usr/lib/python2.7/site-packages/blivet/formats/fs.py", line 792, in teardown
    return self.unmount(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/blivet/formats/fs.py", line 626, in unmount
    raise FSError("umount failed")
FSError: umount failed