Open Stack

Hi,

We have a KVM qcow2 image to be launched on a KVM host. From Dashboard, I don't find a way to specify the disk type for a new instance as IDE. The instance was launched with a virtio disk type.

virsh dumpxml <kvm_vm_name>
shows the following.

....
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none'/>
      <source file='/opt/stack/data/nova/instances/2f317b2e-f3b8-40cd-ba79-402231ccee51/disk'/>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </disk>
....
I want it to be
      <target dev='vda' bus='ide'/>

      <address type='drive' controller='0' bus='0' unit='0'/>


The libvirt.xml under data/nova/instances/<image_id>
....
    <disk type="file" device="disk">
      <driver name="qemu" type="qcow2" cache="none"/>
      <source file="/opt/stack/data/nova/instances/2f317b2e-f3b8-40cd-ba79-402231ccee51/disk"/>
      <target bus="virtio" dev="vda"/>
    </disk>
....

I want it to be
      <target bus="ide" dev=vda"/>

I could manually change libvirt.xml and  virsh edit <kvm_vm_name> as mentioned above. But I want to be able to do it either from Dashboard GUI or commands such as glance or nova.

Does anyone have any pointers on workarounds / solution on this?

Thanks
Pattabi
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