Error on "sudo apt-get update"

[kylegoch]

In Vagrant(1.8.5) using bento/ubuntu-14.04(virtualbox), when I run sudo apt-get update I get the following:
E: Unable to determine file size for fd 9 - fstat (2: No such file or directory)

This is using the most recent bento box from Atlas. I could have sworn that several months ago (last time i used Vagrant plus ubuntu) that I was able to run that command.

[kylegoch]

I found the issue, leaving here in case a future person finds this.

This was caused by my Vagrantfile. It had /tmp mounted to the host machine. However when you run sudo apt-get update it is trying to write to /tmp but it cant do it properly.

Remove /tmp as a shared folder and it will go back to normal operations.