Re: [libvirt-users] Qemu driver not supporting VIR_DOMAIN_DEVICE_MODIFY_CONFIG yet?
On 05/31/2010 11:52 AM, Guido Winkelmann wrote:
Hi,
According to the docs on
http://libvirt.org/html/libvirt-libvirt.html#virDomainDetachDeviceFlags
I ought to be able to do
virDomainDetachDeviceFlags(
<domain>,
<devicexml>,
VIR_DOMAIN_DEVICE_MODIFY_LIVE | VIR_DOMAIN_DEVICE_MODIFY_CONFIG);
to detach a volume both from a currently running VM instance and permanently
from the defined config file.
If I actually try that, though, I'm getting this error:
libvir: QEMU error : Requested operation is not valid: cannot modify the
persistent configuration of a domain
The same thing happens whether or not the domain is running and also happens
if I leave out the "VIR_DOMAIN_DEVICE_MODIFY_LIVE" part.
Does the qemu driver simply not support VIR_DOMAIN_DEVICE_MODIFY_CONFIG yet
(libvirt 0.8.1), or is there some other problem here?
Sounds like you are doing things right, this just isn't implemented for
the qemu driver yet. To make a persistent change, you will have to edit
the domain XML, remove the device, and redefine the domain.
- Cole