root@ubuntu-phablet:~# CONFIG=/var/lib/lxc/android/config lxc-checkconfig
--- Namespaces ---
Namespaces: required
Utsname namespace: missing
Ipc namespace: required
Pid namespace: required
User namespace: missing
Network namespace: missing
Multiple /dev/pts instances: missing

--- Control groups ---
Cgroup: required
Cgroup namespace: required
Cgroup device: missing
Cgroup sched: missing
Cgroup cpu account: missing
Cgroup memory controller: /usr/bin/lxc-checkconfig: 103: [: -ge: unexpected operator
missing

--- Misc ---
Veth pair device: missing
Macvlan: missing
Vlan: missing
File capabilities: /usr/bin/lxc-checkconfig: 118: [: -gt: unexpected operator

Note : Before booting a new kernel, you can check its configuration
usage : CONFIG=/path/to/config /usr/bin/lxc-checkconfig