http://www.chef.io/stable/install.sh is returning a malformed url:
x
http://www.chef.io//stable/chef/metadata?v=&p=mac_os_x&pv=10.10&m=x86_64
I’m not sure where this script lives, but the issue appears to be on this line:
metadata_url="http://www.chef.io//$channel/$project/metadata?v=$version&p=$platform&pv=$platform_version&m=$machine"
Edit: Issue filed