With the stretch freeze in the foreseeable future, I'd like to ask what are the chances of this being included? It would really help make it easy for all the various chroot manager apps to do the right then when using debootstrap to install. Lots of people are using crouton for real work without realizing that the install process is basically wide open to exploitation.
for example: https://github.com/dnschneid/crouton/issues/2362#issuecomment-258653710
