[libvirt] Lxc support

[Daniel P. Berrange]

On Fri, Oct 29, 2010 at 12:27:59PM +0200, Jean-Philippe Menil wrote:
> Le 29/10/2010 12:00, Osier a écrit :
> >On 10/29/2010 04:42 PM, Jean-Philippe Menil wrote:
> >>Hi,
> >>
> >>i'm trying to test the lxc support in libvirt, but but libvirt failed to
> >>start container with error "lxcContainerAvailable:897 : clone call
> >>returned Operation not permitted, container support is not enabled"
> >>
> >
> >What's the kernel version you use? Just as the error message says, the
> >system call 'clone' failed, It's probly caused by lacking of kernel
> >support.
> >
> >At least you should make sure 'clone' support these flags:
> >
> >CLONE_NEWPID, CLONE_NEWNS, CLONE_NEWUTS, CLONE_NEWIPC, SIGCHLD

> thanks for your response.
> The kernel is a 2.6.36 wit hthe following:
> root at redbreast:/tmp# cat /boot/config-2.6.36-dsiun-1a | grep -i  pid
> CONFIG_PROC_PID_CPUSET=y
> CONFIG_PID_NS=y
> # CONFIG_SPI_SPIDEV is not set
> CONFIG_HID_PID=y

You need to check for _NS=  here, and want to see the following

$ grep _NS= /boot/config-2.6.34.6-54.fc13.x86_64 
CONFIG_CGROUP_NS=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y

Daniel
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