Upgrading file systems

[Rebecca R Hepper seagate com]

Hello All,

I have RedHat 7.1 systems and wish to upgrade to 8.0 systems.  If I use the
RedHat CDs and manually go through an upgrade, it asks me if I want to
migrate to  ext3 file systems.  Is it possible to upgrade the file systems
during a kickstart upgrade?  If so, is there some keyword I can put in my
ks.cfg to get the file system migrated to an ext3?  If I use a ks.cfg as
shown below, the file system does NOT get upgraded.

lang en_US
nfs --server 10.x.x.x --dir /var/redhat.disks/redhat-8.0
keyboard us
upgrade
bootloader --useLilo --location=mbr


Thanks!
Becky