[ovirt-users] Importing VM from Xen Server 6.5

[Anantha Raghava]

Hi,

Tested this with different combinations:

a. from VDSM host, both "ssh root at 192.168.1.40" and "sudo -u vdsm ssh 
root at 192.168.1.40" commands are logging in without asking for password 
and I can run all xe commands without any glitch without modifications 
to default xen server firewall or SELinux rules.

b. With firewall enabled and SELinux set to enforcing or permissive or 
disabled, I run "virsh -c ssh://root@192.168.1.40". And the command is 
resulting in two errors:

     error: filed to connect to the hypervisor
     error: unable to connect to the server at '192.168.1.40:16514' : No 
route to the host.

c. With firewall disabled and SELinux set to Enforcing or permissive or 
disabled, I run "virsh -c ssh://192.168.1.40". And the command is 
resulting in two errors

error: filed to connect to the hypervisor
     error: unable to connect to the server at '192.168.1.40:16514' : 
Connection refused

-- 

Thanks & Regards,


Anantha Raghava

eXza Technology Consulting & Services

Ph: +91-9538849179, E-mail: raghav at exzatechconsulting.com 
<mailto:raghav at exzatechconsulting.com>

URL: http://www.exzatechconsulting.com <http://www.exzatechconsulting.com/>

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On Thursday 11 August 2016 12:20 PM, Shahar Havivi wrote:
> On 10.08.16 19:40, Anantha Raghava wrote:
>> 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,
> You don't need to try it on oVirt when 'virsh -c' doesn't work since oVirt try
> to connect via libvirt libraries (same as virsh) before it called virt-v2v.
>
> Did you follow all the steps in the wiki?
> Are you able to ssh to the Xen server from the vdsm machine that you try to
> run virsh without password? (ssh root at 192.168.1.40)
>
>> -- 
>>
>> Thanks & Regards,
>>
>> Anantha Raghava
>>
>>
>> Do not print this e-mail unless required. Save Paper & trees.
>>
>> On Wednesday 10 August 2016 06:04 PM, Anantha Raghava wrote:
>>> Hi,
>>>
>>> Let me try this and post the results here.
>>>
>>> Regards,
>>> Ananth
>>>
>>> On 10 Aug 2016 15:28, "Richard W.M. Jones" <rjones at redhat.com
>>> <mailto:rjones at 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
>>>      <https://libvirt.org/guide/html/Application_Development_Guide-Architecture-Transports.html>
>>>
>>>      Rich.
>>>
>>>      --
>>>      Richard Jones, Virtualization Group, Red Hat
>>>      http://people.redhat.com/~rjones <http://people.redhat.com/%7Erjones>
>>>      Read my programming and virtualization blog: http://rwmj.wordpress.com
>>>      virt-builder quickly builds VMs from scratch
>>>      http://libguestfs.org/virt-builder.1.html
>>>      <http://libguestfs.org/virt-builder.1.html>
>>>
>

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