On 4/4/19 2:02 PM, PR PR wrote:
Hi,
I am creating a guest with following description for interfaces in the
xml using virsh create xml command. For some reason, the guest interface
names in the VM dont match the names specified in the xml. Is there a
way to make guest interface names predictable?
For qemu (which you've indicating you're using) there isn't any way to
set the name of the network device in the guest from the libvirt config.
There is no visibility of the <guest dev='xxx'> element into the guest
OS; all that the guest can know is that there is an e1000 ethernet
device plugged into PCI bus 0 slot 3, and it has MAC address
52:54:00:17:0b:e7. Any determination of name must be done within the
guest OS.
The <guest dev='blah'> element is only used by the LXC and openvz
drivers. It really should be flagged as an error during validation for
other drivers (patches welcome :-).
Following is the qemu version on host
dpkg --list | grep -i qemu
ii qemu-kvm 1:2.11+dfsg-1ubuntu7.10
amd64 QEMU Full virtualization on x86 hardware
<interface type='user'>
<mac address='52:54:00:17:0b:e7'/>
<guest dev='eth0'/>
<model type='e1000'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>
<interface type='ethernet'>
<mac address='52:54:00:ee:70:34'/>
<target dev='net0'/>
<guest dev='Ethernet0'/>
<model type='rtl8139'/>
<alias name='net1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05'
function='0x0'/>
</interface>
Thanks
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