I got this same error. I did have a previously working vm. I did set hostname.
I am working on Ubuntu 10.04 64-bit. I moved ubuntu-kvm. mv ubuntu-kvm old-ubuntu-kvm I also moved othost.xml sudo mv /etc/libvirt/qemu/othost.xml oldothost.xml After killing libvirtd it worked. $ sudo vmbuilder kvm ubuntu -c otserver.cfg -- AttributeError: 'Libvirt' object has no attribute 'vm' https://bugs.launchpad.net/bugs/562189 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs