I got this with a fresh install of 8.04 too, and I've had to help a few people on IRC who have been bitten by it. My solution was as follows:
boot into recovery console (the only way to get root now since sudo is broken) edit /etc/hosts and add the shortname - I added it to both the 127.0.0.1 and the 127.0.1.1 lines. At this stage I don't do IPv6 so don't know about that one chmod 0444 /etc/hosts (this is necessary because shortly after rebooting some idiot process will erase the fix unless this file is read-only) -- Missing hostname in /etc/hosts causes sudo to fail https://bugs.launchpad.net/bugs/19775 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
