libvirt users - Nov 2016 - how to use command 'guest-file-open' for Windows server 2012R2 vm

hello,


I am using  libvirt 1.2.17 on CentOS 7.2 - kernel
3.10.0-327.13.1.el7.x86_64. The command guest-file-open failed to open
with error "this feature or command is not currently supported", the
detail is as below:

virsh qemu-agent-command instance-00000015
"{\"execute\":\"guest-file-open\",
\"arguments\":{\"path\":\"\tmp.txt\",\"mode\":\"r\"}}"
error: internal error: unable to execute QEMU agent command
'guest-file-open': this feature or command is not currently supported.

The guest instance-00000015 is a Windows server 2012R2, and I
installed the qemu-guest-agent by the file qemu-ga-x64.msi from
virtio-win-0.1.126. It can be running in guest.

Doesn't the qemu-guest-agent in Windows VM support guest-file-*
commands? How or when can I use the command guest-file-* command?

Thanks very much!!
-mkliu28

On 08.11.2016 08:48, 刘梦可 wrote:
> hello,
> 
> 
> I am using  libvirt 1.2.17 on CentOS 7.2 - kernel
> 3.10.0-327.13.1.el7.x86_64. The command guest-file-open failed to open
> with error "this feature or command is not currently supported",
the
> detail is as below:
> 
> virsh qemu-agent-command instance-00000015
> "{\"execute\":\"guest-file-open\",
>
\"arguments\":{\"path\":\"\tmp.txt\",\"mode\":\"r\"}}"
> error: internal error: unable to execute QEMU agent command
> 'guest-file-open': this feature or command is not currently
supported.
> 
> The guest instance-00000015 is a Windows server 2012R2, and I
> installed the qemu-guest-agent by the file qemu-ga-x64.msi from
> virtio-win-0.1.126. It can be running in guest.
> 
> Doesn't the qemu-guest-agent in Windows VM support guest-file-*
> commands? How or when can I use the command guest-file-* command?
Firstly, this question is probably better asked on qemu mailing list
since they are the ones in charge of qemu-ga.
Secondly, from the qemu git log it looks like file handling was
implemented for windows port of qemu-ga in fa193594f which is contained
in the v2.3.0 release. So probably updating your qemu-ga might help.

Michal

OK. Thanks!!

-mkliu28

On Tue, Nov 8, 2016 at 8:27 PM, Michal Privoznik <mprivozn@redhat.com>
wrote:
> On 08.11.2016 08:48, 刘梦可 wrote:
>> hello,
>>
>>
>> I am using  libvirt 1.2.17 on CentOS 7.2 - kernel
>> 3.10.0-327.13.1.el7.x86_64. The command guest-file-open failed to open
>> with error "this feature or command is not currently
supported", the
>> detail is as below:
>>
>> virsh qemu-agent-command instance-00000015
>> "{\"execute\":\"guest-file-open\",
>>
\"arguments\":{\"path\":\"\tmp.txt\",\"mode\":\"r\"}}"
>> error: internal error: unable to execute QEMU agent command
>> 'guest-file-open': this feature or command is not currently
supported.
>>
>> The guest instance-00000015 is a Windows server 2012R2, and I
>> installed the qemu-guest-agent by the file qemu-ga-x64.msi from
>> virtio-win-0.1.126. It can be running in guest.
>>
>> Doesn't the qemu-guest-agent in Windows VM support guest-file-*
>> commands? How or when can I use the command guest-file-* command?
>
> Firstly, this question is probably better asked on qemu mailing list
> since they are the ones in charge of qemu-ga.
> Secondly, from the qemu git log it looks like file handling was
> implemented for windows port of qemu-ga in fa193594f which is contained
> in the v2.3.0 release. So probably updating your qemu-ga might help.
>
> Michal