Hi, On my own build linux system without systemd, I have following problem, when I try to start a qemu VM, libvirtd.log says: 2015-06-23 08:29:25.498+0000: 889: error : virNetDevGetIndex:842 : Unable to get index for interface vm0.0: No such device 2015-06-23 08:29:25.551+0000: 886: error : virNetDevGetIndex:842 : Unable to get index for interface vm0.0: No such device 2015-06-23 08:29:25.611+0000: 888: error : virNetDevGetIndex:842 : Unable to get index for interface vm0.0: No such device ... virsh dumpxml vm: ... <interface type='ethernet'> <mac address='52:54:00:cd:15:51'/> <target dev='vm0.0'/> <model type='virtio'/> <boot order='3'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x0f' function='0x0'/> </interface> ... I had no problems with 1.2.12, so I started a git bisect and I came down to this: # first bad commit: [4bbe1029f2fb6cd1c102794951a944c62fdbd0e6] qemu: fix ifindex array reported to systemd When I revert that commit on top of 1.2.13.1, problem is gone. I tried today's version (d10a5f58c75), problem is still in there. Hope this is useful to you? Thomas