[Openstack] Volume booting and HVM

John Garbutt John.Garbutt at citrix.com
Fri Oct 26 20:16:50 UTC 2012


Just a heads up. There are a few bugs in that area that have been fixed in Grizzly, and are not yet backported to Folsom stable. Things like deleting the root volume after terminating a boot from volume instance.

> -----Original Message-----
> From: openstack-bounces+john.garbutt=citrix.com at lists.launchpad.net
> [mailto:openstack-bounces+john.garbutt=citrix.com at lists.launchpad.net] On
> Behalf Of Egoitz Aurrekoetxea Aurre
> Sent: Monday, October 22, 2012 10:35 AM
> To: Vishvananda Ishaya
> Cc: openstack at lists.launchpad.net
> Subject: Re: [Openstack] Volume booting and HVM
> 
> Thank you very much Vishvananda!!!!
> 
> Best regards,
> 
> El 22/10/2012, a las 18:53, Vishvananda Ishaya <vishvananda at gmail.com>
> escribió:
> 
> > The ability to clone an image to a volume was only recently added to cinder,
> so there is no automatic clone on boot in horizon yet. You will have to manually
> create a volume from an image and then boot from it.
> >
> > For older versions of openstack, the instructions are here:
> >
> > http://docs.openstack.org/trunk/openstack-compute/admin/content/boot-f
> > rom-volume.html
> >
> > In folsom you can skip the mount and copy step and just create a volume
> directly from an image:
> >
> > IMAGE_ID=f4addd24-4e8a-46bb-b15d-fae2591f1a35
> > cinder create --image-id $IMAGE_ID --display-name my-volume 10
> > VOLUME_ID=<uuid from above command> $ nova boot --image $IMAGE_ID
> > --flavor 2 --key_name mykey --block_device_mapping vda=$VOLUME_ID
> > boot-from-vol-test
> >
> > Vish
> >
> > On Oct 22, 2012, at 4:02 AM, Egoitz Aurrekoetxea Aurre
> <egoitz at ramattack.net> wrote:
> >
> >> Good morning,
> >>
> >> I have noticed I was confused about the volume concept and booting from
> volume. I was thinking, when I clicked in Horizon "boot from volume" AND
> selected an HVM image (located at glance) that image was being dumped to the
> volume, and following times that volume would be able to boot by it's own. But
> have seen when I terminate de instance I'm not getting my purpose and I'm not
> able to later boot from that volume with preserved changes (configs and so)..
> How could I manage for getting my goal??. We're used to use the vms with
> XenCenter and then I was able to stop a vm and later to boot it. I'm looking for a
> similar manner with Openstack. I though I was get my goal by selecting booting
> from volume AND launching and image..
> >>
> >> Any help would be very appreciated,
> >> Best regards
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> 
> 
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