[Q] hostname change: i tried for 83 days. But failed. HELP ME PLEASE !!!

["Byung-Hee HWANG (황병희, 黃炳熙)" <soyeomul@doraji.xyz>]

Hello, Debian people!

I love my Chromebook. Via Crouton, i did install Ubuntu ( the internal
is Debian Wheezy, i guess).

(precise)soyeomul@localhost:/etc$ cat os-release
NAME="Ubuntu"
VERSION="12.04.5 LTS, Precise Pangolin"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu precise (12.04.5 LTS)"
VERSION_ID="12.04"

(precise)soyeomul@localhost:/etc$ cat debian_version
wheezy/sid
(precise)soyeomul@localhost:/etc$ 

By the way i cannot change hostname, i tried with followed link
[http://askubuntu.com/questions/9540/how-do-i-change-the-computer-name].

By sudo command, i edited /etc/hostname to "alex.chromebook". And i did
reboot[`/sbin/reboot']. But there is no change. Always the hostname is
"localhost".  

Any comments Welcome!!! because i am going to be crazy T.T

I Want To "alex.chromebook" as hostname.

-- 
^고맙습니다 _地平天成_ 감사합니다_^))//