Description of problem:
The full message:

Traceback (most recent call last):
 File "/usr/lib/anaconda/gui.py", line 1137, in handleRenderCallback
  self.currentWindow.renderCallback()
 File "/usr/lib/anaconda/iw/progress_gui.py", line 244, in renderCallback
  self.intf.icw.nextClicked()
 File "/usr/lib/anaconda/gui.py", line 873, in nextClicked
  self.dispatch.gotoNext()
 File "/usr/lib/anaconda/dispatch.py", line 174, in gotoNext
  self.moveStep()
 File "/usr/lib/anaconda/dispatch.py", line 242, in moveStep
  rc = apply(func, self.bindArgs(args))
 File "/usr/lib/anaconda/packages.py", line 579, in turnOnFilesystems
  diskset.savePartitions ()
 File "/usr/lib/anaconda/partedUtils.py", line 726, in savePartitions
  disk.commit()
error: Warning: The kernel was unable to re-read the partition table 
on /dev/hda (Device or resource busy).  This means Linux won't know anything 
nothing about the modifications you made until you reboot.  You should reboot 
your computer before doing anything with /dev/hda.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Install FC4 on Toshiba Satellite P20
2. Choose auto partition
3. choose any packages
  
Actual results:
Bails out after selecting packages

Expected results:
Install FC4


Additional info:
manually partitioning seems to have done the job