Re: [ovirt-users] Importing VM from Xen Server 6.5

On 11.08.16 14:14, Anantha Raghava wrote: > Hi, > > Tested this with different combinations: > > a. from VDSM host, both "ssh root(a)192.168.1.40&quot; and "sudo -u vdsm ssh > root(a)192.168.1.40&quot; 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(a)exzatechconsulting.com > <mailto:raghav@exzatechconsulting.com> > > URL: http://www.exzatechconsulting.com <http://www.exzatechconsulting.com/> > > /*Support No.: +91-7829774584 */ > > > > DISCLAIMER: > This e-mail communication and any attachments may be privileged and > confidential to eXza Technology Consulting & Services, and are intended only > for the use of the recipients named above If you are not the addressee you > may not copy, forward, disclose or use any part of it. If you have received > this message in error, please delete it and all copies from your system and > notify the sender immediately by return e-mail. Internet communications > cannot be guaranteed to be timely, secure, error or virus-free. The sender > does not accept liability for any errors or omissions. > > > 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(a)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(a)redhat.com >>>> <mailto: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... >>>> <https://libvirt.org/guide/html/Application_Development_Guide-Architecture... >>>> >>>> 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> >>>>