Description of problem:
Installation aborted before it gave a chance to edit the partition table.  The
last lines on /tmp/anaconda.log were:
 Isys.py:mount()- going to mount /tmp/sda2 on /mnt/sysimage
 Isys.py:mount()- going to mount /tmp/sda5 on /mnt/sysimage
 Isys.py:mount()- going to mount /tmp/sda6 on /mnt/sysimage
in my system sda2 and sda5 were RH4u4 partitions and sda6 was a SLED10 partition.
Ctrl-Alt-F1 after the error displayed:
 install exit abnormally [1/1]
Ctrl-Alt-F2 after the error displayed an error stack trace.  Since I couldn't
scroll back I don't know the context but the last three function calls were:
 syscall_call -> sys_oldumount -> sys_umount

Version-Release number of selected component (if applicable):
FC6Test3 CDs

How reproducible:
always

Steps to Reproduce:
1.  install SLED10 (reiser fs is the default) in one partition
2.  Install FC6Test3
3.
  
Actual results:
installation fails

Expected results:
installation should continue

Additional info:
same CDs worked ok in a hdd that only had one partition with RHEL5 Beta