Re: [libvirt] Issues with qemu-nbd over AF_UNIX and virDomainAttachDevice

Hi List, Facing issues trying to use virDomainAttachDevice API of libvirt from python. Here is what I am trying to do 1) Setup qemu-nbd to export a qcow2 disk image over unix socket on my localhost qemu-nbd -t -k /tmp/mysock2 /home/dpkshetty/work/img/iscsi_disk The above blocks. and i am able to use qemu-system-x86_64 -drive file=nbd:unix:/tmp/mysock2 Just to test it...and it works. Since currently the disk is a blank disk.. I see "No bootable device" and QEMU stops.. whcih is expected So qemu-nbd is setup and working properly 2) >>> print nbdxml <disk type='network' device='disk'> <driver name="qemu" type="qcow2"/> <source protocol="nbd"> <host name="deepakcs-lx" port="10809" transport="unix" socket="/tmp/mysock2" /> </source> <target dev="vdc" bus="virtio" /> </disk> >>> dom.attachDevice(nbdxml) libvir: QEMU error : operation failed: open disk image file failed Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib64/python2.7/site-packages/libvirt.py", line 400, in attachDevice if ret == -1: raise libvirtError ('virDomainAttachDevice() failed', dom=self) libvirt.libvirtError: operation failed: open disk image file failed and I see... in the VM's log.... inet_connect_opts: connect(ipv4,deepakcs-lx.local.lan,192.168.1.7,10809): Connection refused