From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)

Description of problem:
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 412, in 
nextClicked
    next = self.currentScreen.getNext ()
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/iw/examine_gui.py", line 
19, in getNext
    self.todo.upgradeFindPackages (self.root)
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/todo.py", line 910, in 
upgradeFindPackages
    fstab.readFstab('/mnt/sysimage/etc/fstab', self.fstab)
  File "/var/tmp/anaconda-7.0.1//usr/lib/anaconda/fstab.py", line 1021, in 
readFstab
    device = labelsByMount[label]
KeyError: /

Local variables in innermost frame:
loopIndex: {}
fstab: <fstab.GuiFstab instance at 84e7800>
labelsByMount: {'/boot': 'hda2', 'D:': 'hda5'}
line: LABEL=/                 /                       ext2    
defaults        1 1

path: /mnt/sysimage/etc/fstab
device: hda2
raidByDev: {}
label: /
drives: ['hda']
lines: ['LABEL=/                 /                       ext2    
defaults        1 1\012', 'LABEL=/boot             /boot                   
ext2    defaults        1 2
\012', '/dev/cdrom              /mnt/cdrom              iso9660 
noauto,owner,ro 0 0\012', '/dev/fd0                /mnt/floppy             
auto    noauto,owner    0 0
\012', 'none                    /proc                   proc    
defaults        0 0\012', 'none                    /dev/pts                
devpts  gid=5,mode=620  0 0\012', '/dev/hda6               
swap                    swap    defaults        0 0\012']
labels: {'hda5': 'D:', 'hda2': '/boot'}
fields: ['LABEL=/', '/', 'ext2', 'defaults', '1', '1']
f: <open file '/mnt/sysimage/etc/fstab', mode 'r' at 8513518>
raidList: []

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

<failed>


How reproducible:
Didn't try


Additional info: