This is quite a niche problem. I'm following this fantastic guide with a set of Debian VM I deployed using virsh + cloud-init When I got to https://github.com/kelseyhightower/kubernetes-the-hard-way/blob/master/docs/03-compute-resources.md#hostnames the `sed` command didn't find any match because there isn't a 127.0.1.1 entry. I thought it could be helpful to add a note to the guide, or maybe run a command before sed to add a dummy entry if 127.0.1.1 is missing.