我正在尝试在Ubuntu 18.04上安装基于vagrant的open edX（Ginkgo）的devstack。 但是当我无所事事时，执行停滞在MOUNT。并在一段时间后低于错误。
The following SSH command responded with a non-zero exit status.
Vagrant assumes that this means the command failed!
mount -o vers=3,udp 192.168.33.1:/home/sahilpatel/ginkgo/edx-platform
/edx/app/edxapp/edx-platform
Stdout from the command:
Stderr from the command:
mount.nfs: Connection timed out
我的系统版本如下： 流浪汉2.2.0 Virtualbox 5.2.22r126460