root can't change file permission

Hi,

I can't change permission of a file. OS is RHEL 3.

# whoami
root
# ls -l .bashrc
-rw-r--r-- 1 root root 176 Aug 23 1995 .bashrc
# chmod 744 .bashrc
chmod: changing permissions of `.bashrc': Operation not permitted
#

How do i chmod the file ?

Regards,

Yujin

 

 

 

 

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