[Lxc-users] Can not start containers using latest tools from the git

[Daniel Lezcano]

John Drescher wrote:
>>>  I had that problem a week or so ago and
>>> reported it on lxc-devel.  Just yesterday, they checked in some stuff
>>> that should fix it but I haven't had a chance to retest.  Do a "git
>>> pull" to update and check to see if the latest patches fix that.
>>>
>>> Just for something really REALLY off the wall, try unmounting /dev/shm
>>> and then retry the start.  If it starts, that's exactly my problem that
>>> I have not been able to reproduce.  I'm hoping the developers are now on
>>> this list as well.
>>>
>>>       
>> I will try to test this tonight if I get a chance. I just closed the
>> vm I was testing that in..
>>
>>     
>
> I did not have /dev/shm mounted in the first place. I tried mounting,
> unmounting and in all cases same result:
> localhost ~ # mount /dev/shm
> localhost ~ # rm /lxc/guest_1/lxc-oldrootfs* -rf
> localhost ~ # lxc-start -n guest_1
> lxc-start: Device or resource busy - could not unmount old rootfs
> lxc-start: failed to pivot_root to '/lxc/guest_1'
> lxc-start: failed to set rootfs for 'guest_1'
> lxc-start: failed to setup the container
> localhost ~ # umount /dev/shm
> localhost ~ # lxc-start -n guest_1
> lxc-start: Invalid argument - failed to umount '/lxc-oldrootfs-DUZVTO/dev/shm'
> lxc-start: failed to pivot_root to '/lxc/guest_1'
> lxc-start: failed to set rootfs for 'guest_1'
> lxc-start: failed to setup the container
> localhost ~ # rm /lxc/guest_1/lxc-oldrootfs* -rf
> localhost ~ # lxc-start -n guest_1
> lxc-start: Invalid argument - failed to umount '/lxc-oldrootfs-adU2gT/dev/shm'
> lxc-start: failed to pivot_root to '/lxc/guest_1'
> lxc-start: failed to set rootfs for 'guest_1'
> lxc-start: failed to setup the container
>   
Hi John,

can you give the following information ?
  * content of the /proc/mounts file
  * content of the /dev/shm directory (and a fuser of each file there is in)
  * kernel version
  * distro

Thanks
  -- Daniel