Robert Moskowitz wrote: > I am trying to build a custom kernel for the HIPL code > (infrahip.hip.fi), using the patch for the Linux 2.6.18 kernel. I Your problem is likely because Red hat already applies 10 bazillion patches to the kernel for their packages, so there's little chance that the patch from that site will apply cleanly. So you, or someone will have to fix the patch, or go download the raw kernel sources that the patch is for and use that kernel instead knowing that you'll likely have other problems that Red Hat's patches were designed to prevent. Welcome to the development world of linux 2.6. I miss the older model they used on 2.4 and earlier. Now distributions are expected to maintain the stable kernels, which is fine until you need/want to do something like your trying to do. In the past this was much easier. Fortunately I haven't had to patch the kernel for years. nate