[lxc-users] Remounting cgroups and changing namespace.

[Fajar A. Nugraha]

On Tue, Jul 22, 2014 at 12:46 PM, Medhamsh V <medhamsh at gmail.com> wrote:
> Hello,
>
> While working with unprivileged containers in Ubuntu-14.04 I am facing the
> following issue.
>
> After installing all the requirements and creating a container, I am unable
> to start it untill
> I reboot the host. Once I reboot the host I am able to start the containers.
> Following is the
> error I get.
>
> lxc_container: call to cgmanager_create_sync failed: invalid request
> lxc_container: Failed to create hugetlb:lamp-template
> lxc_container: Error creating cgroup hugetlb:lamp-template
> lxc_container: failed creating cgroups
> lxc_container: failed to spawn 'lamp-template'
> lxc_container: The container failed to start.
> lxc_container: Additional information can be obtained by setting the
> --logfile and --log-priority options.
>
>
> Now I am trying to make this work without rebooting the host because I am
> provisioning this host
> via Chef and can't reboot the host for automation purposes. Though I am able
> to figure out that
> cgroups need to be remounted, is there something to change for namespace and
> if so, how to do that?
> This is on top of EC2.


Latest ubuntu does not mount cgfs (except systemd). It starts
cgmanager which listens to a socket. You should probably try "start
cgmanager".

-- 
Fajar