This happened after I tried to make another partition after 
deleting /dev/hda1. /dev/hda2 is an ext3 partition with RH7, and what I 
wanted to do was to create another partition, which diskdruid 
named /dev/hda3.. so there was no /dev/hda1, but I continued an this 
happened: (/dev/hda5 is a swap disk with 133MB)

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/text.py", line 1030, in 
run
    rc = apply (step[1](), step[2])
  File "/var/tmp/anaconda-
7.0.1//usr/lib/anaconda/textw/partitioning_text.py", line 289, in __call__
    avail = apply(isys.spaceAvailable, 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>