The following error message appeared as soon as I completed the 
configuration selections and redhat began to install.

Traceback (innermost last):
  File "/var/tmp/anaconda-7.0//usr/lib/anaconda/iw/progress_gui.py", line 
19, in run
    rc = self.todo.doInstall ()
  File "/var/tmp/anaconda-7.0//usr/lib/anaconda/todo.py", line 1428, in 
doInstall
    self.fstab.mountFilesystems (self.instPath)
  File "/var/tmp/anaconda-7.0//usr/lib/anaconda/fstab.py", line 697, in 
mountFilesystems
    raise SystemError, (errno, msg)
SystemError: (22, 'Invalid argument')

Local variables in innermost frame:
size: 1033200
fsystem: ext2
self: <fstab.GuiFstab instance at 8442528>
msg: Invalid argument
doFormat: 0
errno: 22
device: sda1
instPath: /mnt/sysimage
mntpoint: /

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