So not kgraft, kpatch, etc. <a href="http://www.infoworld.com/article/2851028/linux/four-ways-linux-is-headed-for-no-downtime-kernel-patching.html" rel="nofollow">http://www.infoworld.com/article/2851028/linux/four-ways-lin...</a><p>Looks DKMS for the kernel itself.
I'd never heard of Exherbo; thanks for the pointer. (I've been looking at Nix and Aboriginal in search of a minimal distro that I can figure out how to put into a single repo and build with a single command.)