fix resolvconf error must be a symlink

# error resolvconf: Error: /etc/resolv.conf must be a symlink
# thanx http://n0b3l1a.blogspot.com/2009/02/resolvconf-error-etcresolvconf-must-be.html
# fix guide

sudo cd /etc

cp resolv.conf resolv.conf.old

rm resolv.conf

sudo ln -s /etc/resolvconf/run/resolv.conf