kitchen-docker /dev/loop issue

[snowtigger]

The following command in my .kitchen.yml

provision_command:

• mknod /dev/loop2 -m 0666 b 7 2

creates /dev/loop2 but not in the correct mode as specified by -m 0666.

The following commands give errors "cannot access `/dev/loop2': No such file or directory"

• chmod 0777 /dev/loop2
• chown kitchen /dev/loop2

Seems like access to /dev/loop* is restricted in kitche-docker. How to make this work?
I have privileged: true in my .kitchen.yml.