docker-machine create --driver virtualbox default No default Boot2Docker ISO found locally

MacBook-Pro:operate-simple-monitor edianzu$ docker-machine create --driver virtualbox default
Running pre-create checks...
(default) No default Boot2Docker ISO found locally, downloading the latest release...
Error with pre-create check: "Get https://api.github.com/repos/boot2docker/boot2docker/releases/latest: dial tcp 13.250.168.23:443: connect: connection refused"

当系统为mac的OSX时,主要不同的是缓存位置。
缓存位置：
/Users/bobo/.docker/machine/cache/boot2docker.iso
远程地址下载：
https://github.com/boot2docker/boot2docker/releases/download/v1.12.3/boot2docker.iso

并移动到对应缓存位置。

再次执行解决该问题。