You can boot into recovery mode and then look at /etc/passwd to find out the username of the user you added. It will probably be user 1000. Then you should be able to use 'passwd $username', where $username is the name of the user that was created, to change the password.
** Changed in: Ubuntu Assignee: (unassigned) => Brian Murray Status: Unconfirmed => Needs Info -- Login after installation. https://launchpad.net/bugs/85025 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs