When installing to a loopback file on a Fat32 formated drive, I get the 
following error:


Traceback (innermost last):
  File 

"/var/tmp/anaconda-7.0.1//usr/lib/anaconda/iw/progress_gui.py", line 

20, in run
    rc = self.todo.doInstall ()
  File 

"/var/tmp/anaconda-7.0.1//usr/lib/anaconda/todo.py", line 1480, in 

doInstall
    if self.method.systemMounted (self.fstab, self.instPath, 

self.hdList.selected()):
  File 

"/var/tmp/anaconda-7.0.1//usr/lib/anaconda/image.py", line 46, in 

systemMounted
    self.loopbackFile = mntPoint + 

fstab.filesystemSpace(mntPoint)[0][0] + \
IndexError: list index out of range


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Note that this happens on 3 different machines, all with fat32 partitions. 
It also happens independent of loopback size (from 300 mb to 1900).   Most 
noteable, however, is that this error only happens with the 7.0 respin 
iso's. The original 7.0 release does not crash in this way.