Setup local packages repository

At Yun:

Download openwrtyun.tar.gz:

wget -O openwrtyun.tar.gz https://www.dropbox.com/s/ilfb7hainhq9r0o/openwrtyun.tar.gz?dl=0 --no-check-certificate
root@Arduino:/mnt/sda1# md5sum openwrtyun.tar.gz
f4351fcf4ebeda3eec702fa98812cf96  openwrtyun.tar.gz

Make sure md5 hash is f4351fcf4ebeda3eec702fa98812cf96

tar -xvzf openwrtyun.tar.gz
nano /etc/opkg.conf
#src/gz attitude_adjustment http://downloads.arduino.cc/openwrtyun/1/packages
src/gz local file:////mnt/sda1/openwrtyun
opkg update