[libvirt-users] Failure when attaching a device

[Jean-Pierre Ribeauville]

Hi,

I'm facing following issue ( or misunderstanding from my side)

I try to attach a device to a running guest ; I want to do it persistently and without having to restart the GUEST .

By using   options  "-live - persistent" , I got following error :

[root at ldc01omv01 data]# virsh attach-device VM_RHEL7-1 "../data/channel_omnivision_to_be_used.xml" --live --persistent
Please enter your authentication name: root at ldc01omv01
Please enter your password:
error: Failed to attach device from ../data/channel_omnivision_to_be_used.xml
error: Requested operation is not valid: cannot modify device on transient domain

[root at ldc01omv01 data]# virsh -r list --all
Id    Name                           State
----------------------------------------------------
8     VM_RHEL7-2                     running
11    W2008R2-2                      running
12    VM_RHEL7-1                     running

By using   options  "-live " , I got following error :


[root at ldc01omv01 data]# virsh attach-device VM_RHEL7-1 "../data/channel_omnivision_to_be_used.xml" --live
Please enter your authentication name: root at ldc01omv01
Please enter your password:
error: Failed to attach device from ../data/channel_omnivision_to_be_used.xml
error: Unable to read from monitor: Connection reset by peer

[root at ldc01omv01 data]# virsh -r list --all
Id    Name                           State
----------------------------------------------------
8     VM_RHEL7-2                     running
11    W2008R2-2                      running

[root at ldc01omv01 data]#

And then the Guest is powered off !!


If I try to attach device when the Guest is off , then :


[root at ldc01omv01 data]# virsh attach-device VM_RHEL7-1 "../data/channel_omnivision_to_be_used_1.xml"  --config --persistent
Please enter your authentication name: root at ldc01omv01
Please enter your password:
error: failed to get domain 'VM_RHEL7-1'
error: Domain not found: no domain with matching name 'VM_RHEL7-1'

FYI , xml file contents is :

<channel type='unix'>
      <source mode='bind' path='//var/lib/libvirt/qemu/VM_RHEL7-1_omnivision_1.agent'/>
      <target type='virtio' name='omnivision_1.agent'/>
</channel>


I'm using  libvirt-1.2.17-13.el7.x86_64


Any help is welcome.

Thanks.

Regards,



J.P. Ribeauville


P: +33.(0).1.47.17.20.49
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jpribeauville at axway.com<mailto:jpribeauville at axway.com>
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