I was executing a vagrant up on my machine. It was giving an nfs error.
mount -o 'vers=3,udp' 192.168.10.1:'/opt/<snip>/mozilla/kuma' /home/vagrant/src Stdout from the command: Stderr from the command: stdin: is not a tty mount.nfs: requested NFS version or transport protocol is not supported
I went hunting for a resolution. I need to install nfs libs.
sudo apt-get install nfs-common nfs-kernel-server
Then it would boot.