For Debian-based systems, we provide 32/64-bit packages for hardy, intrepid, lenny and jaunty.
For Redhat-based systems, we support 32/64-bit packages for Redhat Enterprise Linux 5 and CentOS 5. We have reports that our RPMs work well on Fedora although we haven't tested it.
You can use the patched source to run CDH on platforms that are not supported by our packages (e.g. MacOS X)