In the instructions it would have genkernel users setting up default=linux with label=gk_linux. "sbin./lilo would not work until I changed default to default=gk_linux. Reproducible: Always Steps to Reproduce: 1. 2. 3. I do not think this was a software problem. It was a documentation errorinstead.
Although those instructions are old (they will disappear from the website in a couple of weeks with the new Gentoo release) they aren't wrong. Right beneith the code listing it sais: """ Warning: Substitute KV with the kernel version you have installed, and make sure that default= points to your label (gk_linux if you used genkernel). """