Open Stack

Hi, thanks for your response.

> Having said that, there is probably a bug in Horizon since it's  
> defaulting to vda for the device name when booting from volume.

I think so, too. I'm quite new to Openstack and not 100% sure about my  
statements, but I think my question is not a support issue. I'm trying  
to find the cause for the faulty results when launching instances from  
volume via dashboard.

> The libvirt driver in nova ignores the requested device name in boot  
> from volume / volume attach requests

Yes, I see that, too, in default_device_names_for_instance() the  
bdm.device_name is nulled out. But there is also a "root_device_name",  
which keeps the value provided by a user (CLI or Horizon) and this  
value is applied when trying to boot from that volume, which leads to  
an error. Shouldn't the root_device_name also be nulled out?

Sorry, if this is not the right channel to address this issue, I  
thought it was. So if it's not, what is the way to go here?

Regards,
Eugen

Zitat von Matt Riedemann <mriedem at linux.vnet.ibm.com>:

> On 3/21/2016 10:31 AM, Mike Perez wrote:
>> On 16:01 Mar 21, Eugen Block wrote:
>>> Hi all,
>>>
>>> I'm just a (new) Openstack user, not a developer, but I have a question
>>> regarding the Horizon dashboard respectively launching instances via
>>> dashboard.
>>
>> Hi Eugen!
>>
>> Welcome to the community! This mailing list is development focused  
>> and not our
>> support channel. You can request help at our general mailing list  
>> [1], or Ask
>> OpenStack [2].
>>
>> [1] - http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>> [2] - https://ask.openstack.org/en/questions/
>>
>
> Having said that, there is probably a bug in Horizon since it's  
> defaulting to vda for the device name when booting from volume.
>
> The libvirt driver in nova ignores the requested device name in boot  
> from volume / volume attach requests since Liberty [1]. It's best to  
> let the virt driver in nova pick the device name, you can get the  
> mountpoint via the volume attachment later after the volume's status  
> is 'in-use'.
>
> [1] https://review.openstack.org/#/c/189632/
>
> -- 
>
> Thanks,
>
> Matt Riedemann
>
>
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Eugen Block                             voice   : +49-40-559 51 75
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