[libvirt-users] dumpxml removes <source> portion from network descritiption

Hello. I have a strange error with one of my VMs. If i use dumpxml to save a VM description the source part of the network part is missing. This prevents redifining the machine from the dumped xml file: This is how it looks before dumpxml: <interface type='bridge'> <mac address='52:54:00:34:a1:56'/> <source bridge='br406'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> And afterwards: <interface type='bridge'> <mac address='52:54:00:34:a1:56'/> <target dev='vnet6'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> Someone has an idea whats causing this? Is there a special option maybe? thanks and best regards t.

On 06/19/2014 02:47 PM, Thomas Stein wrote:
Hello.
I have a strange error with one of my VMs. If i use dumpxml to save a VM description the source part of the network part is missing. This prevents redifining the machine from the dumped xml file:
This is how it looks before dumpxml:
<interface type='bridge'> <mac address='52:54:00:34:a1:56'/> <source bridge='br406'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface>
And afterwards:
<interface type='bridge'> <mac address='52:54:00:34:a1:56'/> <target dev='vnet6'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface>
Someone has an idea whats causing this? Is there a special option maybe?
1) what is the libvirt version? 2) are you using "virsh dumpxml --inactive"? The source should anyway be there when you do virsh dumpxml with or without --inactive, but the proper way to get the config of a domain that can be fed back into the domain is by using --inactive (otherwise you get the current status of the interface, which may have some differences). (I'm interested to learn the libvirt version because when I look at the virsh dumpxml of an <interface type='bridge'> on my system running current upstream libvirt, I *do* see the <source> element. Given the version you're running, I can possibly take a look at that vintage of source to see if there was a bug in that version)

On 19. Juni 2014 14:38:06 MESZ, Laine Stump <laine@laine.org> wrote:
Hello.
I have a strange error with one of my VMs. If i use dumpxml to save a VM description the source part of the network part is missing. This
On 06/19/2014 02:47 PM, Thomas Stein wrote: prevents
redifining the machine from the dumped xml file:
This is how it looks before dumpxml:
<interface type='bridge'> <mac address='52:54:00:34:a1:56'/> <source bridge='br406'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface>
And afterwards:
<interface type='bridge'> <mac address='52:54:00:34:a1:56'/> <target dev='vnet6'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface>
Someone has an idea whats causing this? Is there a special option maybe?
1) what is the libvirt version?
2) are you using "virsh dumpxml --inactive"?
The source should anyway be there when you do virsh dumpxml with or without --inactive, but the proper way to get the config of a domain that can be fed back into the domain is by using --inactive (otherwise you get the current status of the interface, which may have some differences).
(I'm interested to learn the libvirt version because when I look at the virsh dumpxml of an <interface type='bridge'> on my system running current upstream libvirt, I *do* see the <source> element. Given the version you're running, I can possibly take a look at that vintage of source to see if there was a bug in that version)
Hi. Thanks for the response. --inactive solves the problem. Didn't even know this switch exits. I'm using 1.2.5 at the moment. thanks again t.
participants (2)
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Laine Stump
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Thomas Stein