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[Vishvananda Ishaya <vishvananda@xxxxxxxxx>]

Not exactly, although you can do something similar in both folsom and grizzly. If you have a volume snapshot you can pass it in the block_device_mapping when you boot an instance and nova will automatically create a volume from the snapshot and boot from it. If you also set delete_on_terminate true you have roughly the same experience as an EBS backed instance.

nova boot --block-device-mapping vda=<snap-id>:snap:<size>:True


You cannot currently pass an image id and get a volume backed instance. It requires two steps

cinder create --image-id=<image-id>
nova boot --block-device-mapping vda=<vol-id>

Vish



On Mar 11, 2013, at 6:24 AM, Logan McNaughton <logan@xxxxxxxxxxxx> wrote:

> Will Grizzly support specifying an empty Cinder volume as an instance's root device?
> 
> Right now you need to setup the volume before hand and you can "boot from volume". But will there be support similar to AWS EBS-backed instances in Grizzly?
> 
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