[lxc-users] User namespaces: is it a mandatory requirement for running lxc ?

[David Shwatrz]

Hello,
The  lxc manpage (man lxc), from the lxc git tree, says:

"The kernel version >= 2.6.27 shipped with the distros, will work with
lxc, this one will have less functionalities but enough to be
interesting. With the kernel 2.6.29, lxc is fully functional. The
helper script lxc-checkconfig will give you information about your
kernel configuration."

I have Fedora 18, with kernel 3.10.9-100.

When I ran
lxc-checkconfig
I get:
...
--- Namespaces ---
Namespaces: enabled
...
User namespace: missing
...

This is the only item marked as "missing" in the output of lxc-checkconfig.

My question is: will lxc work with this Fedoea 18 kernel ?
In case this is only a warning, I have yet another short question: what
will the script say when a mandatory namespace (like pid namesapce) is
missing ? will it say explicitly that lxc cannot be run on this host ?

regards,
DS