[lxc-users] Unable to boot unprivileged container

[Robert Pendell]

OS: Ubuntu 14.04 LTS x86_64
Kernel: Host-Supplied 3.14.1
Provider: Linode
Host Virtualization: Xen Paravirtualized
LXC Version: 1.0.3-0ubuntu3

When I attempt to boot an unprivileged container I get the error
"lxc_container: command get_cgroup failed to receive response".  This
appears to be due to missing cgroup however it is mounted and is using
cgmanager as was recently changed (output seen later).  For
troubleshooting I switched to the distribution supplied kernel (host
supports pv-grub) and it does the same thing.  Host has apparmor
disabled and when I was running the distribution kernel I verified
that apparmor was enabled and running so in this case it made no
difference.

I was able to run a privileged container even with the host-supplied
kernel however this won't meet my individual requirements.

Any assistance will be greatly appreciated.

Debug output: http://pastebin.com/xLHmezLw

shinji at icarus:~$ mount
/dev/xvda on / type ext3 (rw,noatime,errors=remount-ro)
proc on /proc type proc (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
devtmpfs on /dev type devtmpfs (rw,mode=0755)
none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
none on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)

Robert Pendell
shinji at elite-systems.org
A perfect world is one of chaos.