I want to run /usr/bin/updatedb on my newly installed Ubuntu 8.04. How do I do that? Tom tom at tom-desktop:~$ su Password: su: Authentication failure tom at tom-desktop:~$ cd /usr/bin tom at tom-desktop:/usr/bin$ updatedb updatedb: can not open a temporary file for `/var/lib/mlocate/mlocate.db' tom at tom-desktop:/usr/bin$