Re: [openstack-dev] [Nove] Launch an instance with IDE disk type instead of virtio disk type

2013-09-21 Thread Vishvananda Ishaya 
With Havana+ you should be able to use the new block_device_mapping code to 
specify a particular bus during launch, but for Grizzly you can specify the bus 
by setting metadata on the image in glance.

glance image-update uuid --property hw_disk_bus=ide

There are a few properites like this, see 
https://wiki.openstack.org/wiki/LibvirtCustomHardware

Vish

On Sep 20, 2013, at 6:30 PM, Pattabi Ayyasami patt...@brocade.com wrote:

 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='0x' 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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[openstack-dev] [Nove] Launch an instance with IDE disk type instead of virtio disk type

2013-09-20 Thread Pattabi Ayyasami 
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='0x' 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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