can i install ECC 6.0 EHP5 on RHEL5 X-64

hii,

can i install ECC 6.0 EHP5 on RHEL5 X-64??

which i going to install it give me the os error like it shuld be SUSE or RHEL4.

and for the oracle 11g installation please give me the addrss of RPM's

Thanks in advance

Regards,

Vivek