iamadog3333:
It seems tha both Packages.gz and Packages.sig needed. But there is not enough files in your Baidu Yun.
Downloading http://downloads.arduino.cc/openwrtyun/1/packages/Packages.gz.
Downloading http://downloads.arduino.cc/openwrtyun/1/packages/Packages.sig.
Thank you for point it out. I re-upload the file to baidu and also list md5 hash. Please try it again.