[Libvir] virsh command is getting a connecting error

[Daniel P. Berrange]

On Tue, Mar 13, 2007 at 11:37:24AM +0900, Saori Fukuta wrote:
> Hi,
> 
> It was working fine on March 8th, but today it failed to do virsh
> command with an error message. 
> 
> # virsh list
> libvir: error : no support for hypervisor
> lt-virsh: error: failed to connect to the hypervisor
> 
> This message is printed here because nb_network_drivers is 0.
>     --- libvirt.c : virConnectOpen
>     317     if (ret->nb_drivers == 0 || ret->nb_network_drivers == 0) {
>     318         /* we failed to find an adequate driver */
>     319         virLibConnError(NULL, VIR_ERR_NO_SUPPORT, name);
>     320         goto failed;
>     321     }
> 
> I think the cause is because it failed to bind the socket at 
> qemuOpenClientUNIX.
>     --- qemu_internal.c : qemuOpenClientUNIX
>     232     /*
>     233      * now bind the socket to that address and listen on it
>     234      */
>     235     if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
> 
> They are setting members of sockaddr:
>     {sun_family = 1,
>      sun_path = "/usr/var/run/libvirt/qemud-sock", 
>      '\0'}
> and connect returned -1 with errno that was 2(ENOENT).
> 
> Is there any problem? Please tell me how I can use current virsh
> command.

Make sure the libvirt daemon is running - eg with

   /etc/init.d/libvirt start

This should give you a libvirt_qemud process listening on the desired
socket. NB, even though the daemon has _qemud in the name, it *is* also
used for Xen management - it provides managed virtual networking for
guests.

Regards,
Dan.
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