The red hat installer simply does not work for me.  The following message is given when attempting to format the drives.  I have 
been unable to get past this.  I am running using the Install Updates I obtained today at the Red Hat support page.

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 "/tmp/updates/todo.py", line 1491, in doInstall
    self.fstab.mountFilesystems (self.instPath)
  File "/tmp/updates/fstab.py", line 715, in mountFilesystems
    raise SystemError, (errno, msg)
SystemError: (22, 'Invalid argument')

Local variables in innermost frame:
size: 6184993
fsystem: ext2
self: <fstab.GuiFstab instance at 8474060>
msg: Invalid argument
doFormat: 1
errno: 22
device: hdb5
instPath: /mnt/sysimage
mntpoint: /

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