Ok I think I see what got dropped here. Could you touch test these kernels for me to confirm:
http://people.canonical.com/~apw/lp1377025-utopic/ Please report your testing back here. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1357025 Title: unprivileged overlayfs mounts no longer work in utopic Status in “linux” package in Ubuntu: Confirmed Bug description: In 3.13.0-33-generic, root in a non-init user namespace can do overlayfs mounts. In 3.16.0-5-generic he cannot. Test case: sudo apt-get install lxc lxc-usernsexec -- /bin/bash # start a containerized root shell # mkdir /tmp/a /tmp/b /tmp/c # mount -t overlayfs -o upperdir=/tmp/a,lowerdir=/tmp/b x /tmp/c This works in trusty, but not in latest utopic. (A testcase for this will be added to the lxc-tests package, but isn't there yet) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1357025/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp