kickstart RH6.2 installation problems

[Mikhail Kuzminsky]

       Dear netters,

I'm installing RH6.2 on the nodes of new Beowulf cluster.
I want to do kickstart RH 6.2 installation on HDDs, having
the necessary partitions (but they are w/o ext2fs created).
 
But after start of installation I receive following
traceback messages:

File /usr/bin/anaconda, line 341 in ?
     extraModules=extraModules)
File /usr/lib/anaconda/todo.py, line 332 in __init__
     self.setClass(instClass)
File /usr/lib/anaconda/todo.py, line 822, in setClass
     todo.addmount(dev,mntpoint,fstype,reformat)
File /usr/lib/anaconda/todo.py, line 395, in addMount

and install exited abnormally. It looks that
the problems are w/partitions. I'll be very appreciate in
ideas what is reason of errors.

ks.cfg file contents is :

lang en_US
network --bootproto static --ip 192.168.0.10 --netmask 255.255.255.0 --gateway 192.168.0.4
### Source File Location
cdrom
keyboard us
### Partitioning Information
#zerombr yes
zerombr no
#clearpart --linux
part / --size 141 --onpart hda2
       ^^^^^^^^^^
      (the result dosn't depend from the presence of size keywords)
part swap --size 133 --onpart hda3
part /usr --size 3004 --onpart hda5
install
### Mouse Configuration
mouse genericps/2 --emulthree
### Time Zone Configuration
timezone --utc US/Eastern
### X Configuration
xconfig --vsync 60
### Root Password Designation
rootpw paSSword
### Authorization Configuration
auth --useshadow --enablemd5
### Lilo Configuration
lilo --linear --location mbr
### Package Designation
%packages
@ Base
chkfontpath
groff-perl
...
### Commands To Be Run Post-Installation
%post
echo "This is in the chroot" > /tmp/message

Thanks for your help !

Mikhail Kuzminsky
Zelinsky Institute of Organic Chemistry
Moscow