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Re: [virt-tools-list] virsh and attach-device



On Fri, Oct 15, 2010 at 11:13:21AM +0200, David Cure wrote:
> 
> 		Hello,
> 
> 	I want to attach a disk in a running linux squeeze VM (KVM), the
> disk is based on an lv snapshot.
> 
> 	I define my disk in an xml file :
> 
>     <disk type='block' device='disk'>
>       <driver name='qemu'/>
>       <source dev='/dev/vgkvm/lv-tahiti-backup'/>
>       <target dev='vdb' bus='virtio'/>
>     </disk>
> 
> 	And run this command : virsh attach-device vm fic.xml and the
> result is "Device attached successfully"
> 
> 	but in my vm, I don't see the disk (fdisk -l), nothing in the
> log in the VM related to the disk, and nothing in the vm.log on the KVM
> host.
> 
> 	Any idea ? thanks,
You need to have the pci hotplug modules loaded:

	http://www.linux-kvm.org/page/Hotadd_pci_devices

Cheers,
 -- Guido


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