On Fri, 2011-07-15 at 18:36 +0300, Ramez Hanna wrote: > On Fri, Jul 15, 2011 at 6:04 PM, Michael H. Warfield <m...@wittsend.com>wrote: > > > On Fri, 2011-07-15 at 17:50 +0300, Ramez Hanna wrote: > > > how can i check if lxc-attach is not working because of the kernel or > > > because of other bug? > > > > > > On Thu, Apr 7, 2011 at 10:09 AM, Cedric Le Goater <legoa...@free.fr> > > wrote: > > > > > > > On 04/07/2011 07:46 AM, Ramez Hanna wrote: > > > > > from a post that i found earlier in the archive > > > > > subject "entering a container" by Daniel Lezcano > > > > > > > > > > i cannot see the differece between lxc-attach and lxc-execute > > > > > could someone explain? > > > > > > > > lxc-execute creates a container and exec's a command/application > > > > inside it (see manual). > > > > > > > > lxc-attach enters a *running* container and exec's a command inside > > > > it (manual soon to come). This ability of creating an exogenous > > > > process inside a container requires a kernel patchset. > > > > Has that patch set even made it into a release? If so, what version is > > it in and what version are you running. It does not work on my F15 > > system with a 2.6.38 kernel. If it has not made it into a released > > kernel, have you built a custom kernel with it?
> I don't know about that patch, so hence my question if there is anyway to > know from the host if that capability is available From what I can tell, based on some threads from back in March, the patchset has not been merged into the upstream kernel at this time and is almost certainly NOT in 2.6.38.*. I'm currently running Fedora 15 2.6.38.8-32.fc15.x86_64 which does not have the patch and lxc-attach gives this error: [root@forest Alcove]# lxc-attach --name Alcove lxc-attach: Does this kernel version support 'attach' ? lxc-attach: failed to enter the namespace That's probably about the best answer you're going to get. From what I can tell, the last patchset is here: http://lxc.sourceforge.net/patches/linux/2.6.38/ If you want it, you're probably going to have to build yourself a custom kernel with it patched in. Some of the patches have been merged into the upstream kernel but it's not clear to me if we'll have to wait for 3.0 to be released to see them but I suspect that to be the case. We're currently sitting at 3.0-rc7 on that one. 2.6.39.3 is released and stable nut I have no clue what's in there. 2.6.38 is currently at 2.6.38.8, which is what we see in F15 so it is what it is. > > > > C. > > > > Regards, Mike -- Michael H. Warfield (AI4NB) | (770) 985-6132 | m...@wittsend.com /\/\|=mhw=|\/\/ | (678) 463-0932 | http://www.wittsend.com/mhw/ NIC whois: MHW9 | An optimist believes we live in the best of all PGP Key: 0x674627FF | possible worlds. A pessimist is sure of it!
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