no sudo permissions to /etc/hostname

view full story

http://askubuntu.com – When I try to edit my /etc/hostname file, using: sudo nano /etc/hostname (or any other editor) I get the following: Error writing /etc/hostname: Permission denied I then tried to: sudo chmod u+w ./hostname and got the error: chmod: changing permissions of `./hostname': Operation not permitted I get the same error trying to add write permissions to any use or group. This is what ls show: -rw-r--r-- 1 root root 22 2012-06-18 12:25 /etc/hostname Any idea why and what can I do about it? I'm running ubuntu 11.10 (HowTos)