I have been looking at the web page here: https://wiki.debian.org/BuildADebianKernelPackage
and noticed that the source file is supposed to be put in /usr/src it says. It thinks the file would have a format like this: *linux-source-x.x.tar.bz2* The file I downloaded from the kernel.org site looks like this: linux-4.14.15.tar.xz I think that is the same thing here (please correct me if I am wrong). It is currently sitting in my Downloads directory. I am going to move it to the /usr/src directory and then run the other commands. Cheers MF