[ovirt-users] Importing VM from Xen Server 6.5
Anantha Raghava
raghav at exzatechconsulting.com
Thu Aug 11 12:39:44 UTC 2016
Hi,
I have attached the log of both virsh -c ssh://root@192.168.1.40 & virsh
-c xen+ssh://root@192.168.1.40
Hope this helps to debug.
--
Thanks & Regards,
Anantha Raghava
Do not print this e-mail unless required. Save Paper & trees.
On Thursday 11 August 2016 04:01 PM, Shahar Havivi wrote:
> On 11.08.16 14:14, Anantha Raghava wrote:
>> 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
> Good tests,
> We need to figure out why libvirt refuse the connection,
> try to debug virsh by running:
>
> $ export LIBVIRT_LOG_OUTPUTS="1:file:/tmp/libvirt_client.log"
> $ export LIBVIRT_DEBUG=1
> $ virsh -c virsh -c ssh://192.168.1.40
>
> and examing /tmp/libvirt_client.log file
>
>> --
>>
>> Thanks & Regards,
>>
>>
>> Anantha Raghava
>>
>> eXza Technology Consulting & Services
>>
>> Ph: +91-9538849179, E-mail: raghav at exzatechconsulting.com
>> <mailto:raghav at exzatechconsulting.com>
>>
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>>
>> /*Support No.: +91-7829774584 */
>>
>>
>>
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>> Do not print this e-mail unless required. Save Paper & trees.
>>
>> 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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