I am using Ubuntu 11.10. When I type 'uname -r' in the terminal, I get: 3.0.0-15-generic I want to download the kernel source for the particular kernel version I am running. When I look on kernel.org, and then look inside kernel.org/pub/linux/kernel/v3.0/ I can only find source tarballs by the name of linux-3.0.x.tar.gz. My 'uname -r' has an extra '0' in it. Am I looking in the wrong place? Is my kernel not a mainline one?