I'm new at Linux.  I got this bug while installing for the first time.
I also received bug #23178 just prior to this.
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Traceback (innermost last):
  File "/usr/bin/anaconda", line 438, in ?
    
intf.run(todo, test = test)
  File 
"/var/tmp/anaconda-7.0.1//usr/lib/anaconda/gui.py", line 336, in run
    
self.icw.run ()
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/gui.py", 
line 678, in run
    mainloop ()
  File 
"/usr/lib/python1.5/site-packages/gtk.py", line 2554, in mainloop
    
_gtk.gtk_main()
  File "/usr/lib/python1.5/site-packages/gtk.py", line 125, 
in __call__
    ret = apply(self.func, a)
  File 
"/var/tmp/anaconda-7.0.1//usr/lib/anaconda/gui.py", line 428, in 
nextClicked
    self.setScreen (self.currentScreen, self.nextClicked)
  
File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/gui.py", line 466, in 
setScreen
    new_screen = screen.getScreen ()
  File 
"/var/tmp/anaconda-7.0.1//usr/lib/anaconda/iw/rootpartition_gui.py", line 
133, in getScreen
    avail = apply(isys.spaceAvailable, 
self.todo.fstab.getRootDevice())
  File "/usr/lib/anaconda/isys.py", line 
10, in spaceAvailable
    mount(device, "/mnt/space", fstype = fsystem)
  
File "/usr/lib/anaconda/isys.py", line 99, in mount
    rc = 
_isys.mount(fstype, device, location, readOnly)
SystemError: (22, 'Invalid 
argument')

Local variables in innermost frame:
fstype: vfat
location: 
/mnt/space
devName: /tmp/hda5
readOnly: 0
device: /tmp/hda5

ToDo object:
(itodo
ToDo
p1
(dp2
S'method'
p3
(iimage
CdromInstallMethod
p4
(dp5
S'progressWindow'
p6

<failed>