[lxc-users] [Lxc-users] How to enable debug for view why lxc containers not auto start in ubuntu 12.04?

[Vladimir Skubriev]

10.12.2013 19:11, Serge Hallyn пишет:
> Quoting Vladimir Skubriev (vladimir at skubriev.ru):
>> Hi!
>>
>> We used ubuntu lts.
>>
>> Sorry for details, but I hope this bring on another error.
>>
>> Recently i am experimenting with full server backup as rebuilding raid 1
>> array of 2 sata disks to sata disk connected via usb 3.0 dock station
>>
>> And about 20 percent of rebuild ext4 driver in kernel began reporting
>> filesystem write/read errors. This server is in production use and
>> generate average amount of I/O load, instead of other trial server (when
>> i am experimenting with this type of backup)
>>
>> Trial server  - is just standalone ubuntu 12.04 clean install (this
>> error doesn't lead to problems with filesystems but still occurred too).
>>
>> I stopped mdadm rebuild proccess and detach reserv hdd because
>> containers are hang and services running in this containers stopped
>> responding.
>>
>> I reboot server, and containers doesn't auto start normally.
>>
>> When I do: lxc-list writes that they are started, but init processes of
>> this containers are absent in the process list by ps.
>>
>> Only lxc-start -d -n container_name processes are started without any
>> tree with init and appropriate processes of normal running system.
>>
>> If i stopped each container by lxc-stop -n container_name and then start
>> it manually by lxc-start -d -n container_name it normally starts and
>> working.
>>
>> Reboot the server and get not working containers.
>>
>> How to enable debug for view why lxc containers not auto start in ubuntu
>> 12.04 properly?
> A few things, if it's not too late.
>
> 1. Is this the stock lxc 0.7.5 that comes with 12.04?
yes
> 2. Look at the contents of /var/log/upstart/lxc.log
there is nothing )
> 3. Look at the lxc-start line in /etc/init/lxc.conf and try to manually
>     start a container in the exact same way, adding '-l info -o outfile'
>     to the lxc-start command line.  Now outfile should show you where
>     the startup failed.
>
> -serge

Thank you. This is awesome and working )

-- 
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Best regards,

Vladimir Skubriev