[Lxc-users] Problem with lxc-attach on Linux v3.1.0

[Ulli Horlacher]

On Thu 2011-09-08 (10:05), Nikhil Handigol wrote:
> As an additional datapoint, lxc-attach (from lxc-0.7.2) had worked for me
> with linux-2.6.35 with the corresponding setns patches (attached).
> 
> Now I need to upgrade the kernel (ideally, to 2.6.38 or 3.0) and I've been
> unable to get lxc-attach to work with the newer kernel.

Instead of hassling with patching (every time) the kernel you can instead
use my lxc script (*) which can execute commands inside a running
container with:

lxc -x container command options...

Example:

root at vms1:/lxc# lxc -L
container              disk (MB)    RAM (MB)   start-PID    status
bunny                        552           0           0   stopped
fex                        42372           0           0   stopped
ubuntu                         0           0           0   stopped
vmtest1                      552           5       22304   running
vmtest8                      552           0           0   stopped

root at vms1:/lxc# uname -a
Linux vms1 2.6.38-12-server #51~lucid1-Ubuntu SMP Thu Sep 29 20:09:53 UTC 2011 x86_64 GNU/Linux

root at vms1:/lxc# lxc -x vmtest1 uname -a
Linux vmtest1 2.6.38-12-server #51~lucid1-Ubuntu SMP Thu Sep 29 20:09:53 UTC 2011 x86_64 GNU/Linux


(*) http://fex.rus.uni-stuttgart.de/lxc.html

-- 
Ullrich Horlacher              Server- und Arbeitsplatzsysteme
Rechenzentrum                  E-Mail: horlacher at rus.uni-stuttgart.de
Universitaet Stuttgart         Tel:    ++49-711-685-65868
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