red-hat6 upgrade

[asis nir]

hey,
i have linux red-hat 5.2 and i tried upgrading it to v6.0
but after i select everything needed for installation and it starts 
the installation i get the message "installation aborted abnormaly
recieved signal 7" does someone know whats going on?
i selected only deafault components and it's steal reacts the same

nir asis