A few hours earlier I bought a beaglebone (Ångström installed) and now I am trying to add nameserver 220.127.116.11 (google DNS) to /etc/resolv.conf. However when I open it with vim and try to add my nameserver, it gives me E21: cannot make changes, 'modifiable' is off. I changed permissions via chmod. (chmod u+rx /etc/resolv.conf and also tried chmod 777 /etc/resolv.conf) But nothing changed.
Then I tried
:set modifiable :set write
This time I can change but still getting: E382: Cannot write, 'buftype' option is set error.
What should I do?