[Openstack-operators] Migrating KVM VM to Openstack

Shyam Goud shyam.todeti at oneconvergence.com
Thu Feb 7 06:48:05 UTC 2013


I have a VM Instacne (ServerA) running on KVM hypervisor, I want to 
Launch the same VM in Openstack by adding its disk image to glance.

Followed these steps:

1. Copied (ServerA) VM disk image to my openstack server. Image type 
shows as qcow2.

/root at oscontroller-desktop:/home/os-controller# qemu-img info disk//
//image: disk//
//file format: //*qcow2*//
//virtual size: 10G (10737418240 bytes)//
//disk size: 9.8G//
//cluster_size: 2097152//
//backing file: 
2. And added disk image to glance,

/root at oscontroller-desktop:/home/os-controller# glance image-list
| ID                                   | Name | Disk Format | Container 
Format | Size        | Status |
| 1214e050-5445-49af-a35f-0f01071ae83f | ubuntu-precise-21012013 | 
qcow2       | bare             | 250019840   | active |
| 2f9dfb90-6a1f-4226-8cac-d85d4f6b2258 | jenkins-disk-img | qcow2       
| bare             | 10546577408 | active |/

3. But While Launching the VM in Openstack, State goes to Error.

 From nova-compute logs, i see the image is unacceptable Error. Do i 
need convert the KVM VM image to different type ? Plz let me know is 
there any other ways of doing it.

/2013-02-06 21:29:50 TRACE nova.compute.manager [instance: 
8ac2b752-cc56-4ee6-9247-5a19f5308c3c]     reason=_("fmt=%(fmt)s backed 
by: %(backing_file)s") % locals())
2013-02-06 21:29:50 TRACE nova.compute.manager [instance: 
8ac2b752-cc56-4ee6-9247-5a19f5308c3c] *ImageUnacceptable: Image 
2f9dfb90-6a1f-4226-8cac-d85d4f6b2258 is unacceptable: fmt=qcow2 backed 
by: /var/lib/nova/instances/_base/902ba3cda1883801594b6e1b452790cc53948fda*
2013-02-06 21:29:50 TRACE nova.compute.manager [instance: 
2013-02-06 21:29:50 DEBUG nova.utils 
584093aecc7c433985029b31e4d480f9 5e2050ba95674ddfaa9e286d0e481830] Got 
semaphore "compute_resources" for method "abort_resource_claim"... from 
(pid=13756) inner /usr/lib/python2.7/dist-packages/nova/utils.py:713/

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