Originally posted by bwkaz
You're using 2.4.18-19.8, but the error message is talking about 2.4.18-18.8/build. This is a pretty good indication that you either mistyped something ( ) or weren't booted into the new kernel when you compiled the driver. As long as the running kernel matches the kernel you'll use to run the driver, and you have the build symlink in /lib/modules/<version>, it should work.
You do have kernel-source-2.4.18-19.8 installed, right? Did you configure it (should be just like all other kernels)?
I had the 2.4.18-18 kernel and 4191 drivers installed and running fine, then I updated the Redhat Kernel to 2.4.18-19 .......but it won't let me build a 4191 driver from the tar.gz source now. I get the error message I mentioned in the first post........ ? I was definitely booted into the new kernel .... (because Xserve doesn't start in the new one..... ) ........and I definitely didn't mistype anything......