I have installed SL4 on a few test systems. I need to install Clearcase before I can deploy to production systems. Clearcase is only supported for the initial RHEL4 kernel (not update 1). Since I don't have RHEL4 itself I don't know which one that was. My SL4 system shows 2.6.9-5.0.5.ELsmp. What kernel did RHEL4 initially release with?