Comment 5 for bug 19553

<quote>How on earth is that a bug in Ubuntu? Users simply shouldn't do such
stupid things...</quote>
This happens when installing with the Ubuntu install disk. It asks for a hostname, however the hostname doesn't get updated in the /etc/hosts files. Then when users first log in, they are confronted with "sudo: unable to lookup <host> via gethostbyname()". Quotes like "Users shouldn't do such stupid things" is harmful. When you are logged in to a site to help people, please try to do no harm.