After upgrading an x86_64 system from F8 using the F9Beta DVD, when anaconda
tried to configure the bootloader, it threw an exception and died.

The traceback is:

anaconda 11.4.0.55 exception report
Traceback (most recent call first):
  File "/usr/lib64/python2.5/posixpath.py", line 171, in exists
    st = os.stat(path)
  File "/usr/lib/anaconda/isys.py", line 765, in readFSType
    if not os.path.exists(device):
  File "/usr/lib/booty/bootloaderInfo.py", line 65, in syncDataToDisk
    if isys.readFSType(dev) == "xfs":
  File "/usr/lib/booty/bootloaderInfo.py", line 637, in runGrubInstall
    syncDataToDisk(bootDev, "/boot", instRoot)
  File "/usr/lib/booty/bootloaderInfo.py", line 1077, in upgradeGrub
    self.runGrubInstall(instRoot, bootDev, cmds, cfPath)
  File "/usr/lib/booty/bootloaderInfo.py", line 1099, in write
    chainList, defaultDev, justConfig)
  File "/usr/lib/booty/bootloaderInfo.py", line 1215, in write
    chainList, defaultDev, justConfig, intf)
  File "/usr/lib/anaconda/bootloader.py", line 229, in writeBootloader
    justConfigFile, anaconda.intf)
  File "/usr/lib/anaconda/dispatch.py", line 208, in moveStep
    rc = stepFunc(self.anaconda)
  File "/usr/lib/anaconda/dispatch.py", line 131, in gotoNext
    self.moveStep()
  File "/usr/lib/anaconda/gui.py", line 1246, in nextClicked
    self.anaconda.dispatch.gotoNext()
  File "/usr/lib/anaconda/iw/progress_gui.py", line 80, in renderCallback
    self.intf.icw.nextClicked()
  File "/usr/lib/anaconda/gui.py", line 1267, in handleRenderCallback
    self.currentWindow.renderCallback()
TypeError: coercing to Unicode: need string or buffer, instance found

Local variables in innermost frame:
path: fsentry -- device: sda1   mountpoint: /boot
  fsystem: ext3 format: 0
  ismounted: 1  options: 'defaults'
  label: None fsprofile: None

full anacdump.txt is attached.