Hello Richard / Shahar,

I installed and enabled nc on Xen Server host. Now the " ...... sh: nc: command not found: Input/output error" is gone. Communication is established. However I am still getting two specific errors:

VDSM ovirt_engine command failed: End of file while reading data: : Input/Output error

&

Failed to retrieve VMs Information from the external server xen+ssh://root@192.168.1.40

I am receiving the same error when I run virsh -c xen+ssh://root@192.168.1.40

Screen shot is attached for quick reference.

Is it something to do with firewall / ip tables on xen server or libvirtd host?

Hi,

Let me try this and post the results here.

Regards,
Ananth

On 10 Aug 2016 15:28, "Richard W.M. Jones" <rjones@redhat.com> wrote:

On Wed, Aug 10, 2016 at 09:45:52AM +0300, Shahar Havivi wrote:
> On 10.08.16 06:45, Anantha Raghava wrote:
> > Hi,
> >
> > I even attempted to run command virsh -c xen+ssh://root@xenhost and I get
> > error "/*error: End of file reading data: sh: nc: command not found:
> > Input/output error"*/
> First you need to be able to login via virsh (before trying to import via
> oVirt).
>
> I never encounter this error before,
> I guess that nc is netcat...,
> try to install nmap-ncat:
> $ dnf info nmap-ncat
>
> Adding Richard which may have more input.

Yes, you need to install 'nc' on the *target* (Xen) machine.

This is because libvirt's ssh transport uses nc:
https://libvirt.org/guide/html/Application_Development_Guide-Architecture-Transports.html

Rich.

--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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