[Openstack] unrescue VM instance
Tomas Vondra
vondra at czech-itc.cz
Tue Mar 15 11:20:23 UTC 2016
Balazs Varhegyi <varh1ibalazs at ...> writes:
>
> Hi guys,
> I have an openstack instance that run out of storage on core machine and
> the instance got paused.
> I cleared up the core machine so it has more disk now but when I start
> the machine I can't ssh in.
> In rescue mode I'm able to ssh in but I want to unrescue the machine to
> be able to use it again without creating a new instance and migrate
> everything from this failed instance manually.
> I enabled virtlib debug log but nothing interesting came up (or at least
> I didn't notice), the only thing that indicates an error is:
> "Domain id=53 name='instance-00000281'
> uuid=f2715c2c-6d4e-5cf1-7606-f5552a59cb56 is tainted: host-cpu"
> "nova list" shows the machine has the correct IP set but I'm not able to
> ping it on private IP nor via floating IP.
> I tracked the network configuration from libvirt.xml and it seems it's
> configured correctly to connect to the internal bridge: "br-int" on Open
> VSwitch.
>
> do you have any idea what should I try to unrescue the machine to and
> get it into active state?
>
> Regards,
> Balazs Varhegyi
>
>
Hi!
What does the log and console show when the VM is in normal state?
The rescue mode is not a magical solution to all problem. It just runs a
clean OS and attaches your broken one as a secondary disk. YOU have to do
the magic to rescue it.
Tomas
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