- Users - oVirt List Archives

Linked Clones?
by marzoccafabio＠gmail.com 22 Sep '19

22 Sep '19

Hi, I am approaching and studying oVirt in order to propose the solution to a customer as a replacement for a commercial solution they have now. They only need Desktop virtualization. Sorry for the silly question, but I can't find a way to deploy a VM (template) to users as a "linked-clone", meaning that the users' image still refers to the original image but modification are written (and afterwards read) from a new location. This technique is called Copy-on-write. Can this be achieved with oVirt? Fabio

3 2

CentOS 7.7 has been released: note it's not supported for oVirt 4.2
by Sandro Bonazzola 19 Sep '19

19 Sep '19

CentOS 7.7 has been released this week. Please note that CentOS 7.7 is not supported for oVirt 4.2 and older releases. If you want to upgrade to CentOS 7.7 please upgrade to oVirt 4.3 too. If you don't plan to upgrade to oVirt 4.3 please be sure your yum repo files points to http://mirror.centos.org/centos/7.6.1810/ instead of http://mirror.centos.org/centos/7/. The http://mirror.centos.org/centos/7/ URL is now pointing to http://mirror.centos.org/centos/7.7.1908/ so yum upgrade will bring you 7.7 content which may break your 4.2 installation. Thanks, -- Sandro Bonazzola MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://www.redhat.com/>*Red Hat respects your work life balance. Therefore there is no need to answer this email out of your office hours.*

2 2

Re: Upgrade from 4.3.5 rc5 to 4.3.6 rc5 strange errors
by Strahil 19 Sep '19

19 Sep '19

Yeah, I've noticed I was searching for the wrong library (patching from phone seems to be not such a smart idea :) ) . Installing libibverbs fixed the issue, and a bug is opened so devs can find where the deps were missing. Did you notice this behaviour on your setup ? Best Regards, Strahil NikolovOn Sep 19, 2019 10:49, Guillaume Pavese <guillaume.pavese(a)interactiv-group.com> wrote: > > "yum provides */libibverbs.so" will tell you that this file is provided by rdma-core-devel > So to fix this messages when you login, you can do : "yum install rdma-core-devel" > > > Guillaume Pavese > Ingénieur Système et Réseau > Interactiv-Group > > > On Thu, Sep 19, 2019 at 1:56 AM Strahil <hunter86_bg(a)yahoo.com> wrote: >> >> Hello Community, >> >> I was waiting for 7.7 to come up before I upgrade my lab. >> >> The engine got upgraded without issues, same for OS - but after the system powered up I receive the following: >> >> [root@ovirt1 ~]# ssh engine >> root@engine's password: >> Last login: Wed Sep 18 19:48:32 2019 from ovirt1.localdomainnet_mlx5: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory >> net_mlx5: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx5) >> PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory >> PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx4) >> net_mlx5: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory >> net_mlx5: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx5) >> PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory >> PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx4) >> [root@engine ~]# >> >> Anyone else experiecing this ? >> I can't find libmlx4 or libmlx5 in the repos. >> >> P.S.: I have a gluster snapshot, so I can rollback if needed. >> For now I will postpone my hosts' upgrade. >> >> Best Regards, >> Strahil Nikolov >> >> _______________________________________________ >> Users mailing list -- users(a)ovirt.org >> To unsubscribe send an email to users-leave(a)ovirt.org >> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ >> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/PYBXMOZ7EVW4O… > > > Ce message et toutes les pièces jointes (ci-après le “message”) sont établis à l’intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le détruire et d’en avertir immédiatement l’expéditeur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L’internet ne permettant pas d’assurer l’intégrité de ce message . Interactiv-group (et ses filiales) décline(nt) toute responsabilité au titre de ce message, dans l’hypothèse ou il aurait été modifié. IT, ES, UK.

2 1

disable selinux ?
by Nardus Geldenhuys 19 Sep '19

19 Sep '19

Hi Hope you are well. Quick question. Can I disable SELINUX on the ovirt nodes ? Will there be any issues. I know that you cant migrate from SELINUX to DISABLED SELINUX nodes. Regards Nar

2 1

Best Practices to update a Windows VM
by marzoccafabio＠gmail.com 19 Sep '19

19 Sep '19

Once created a "main" VM we keep it alone to embed Windows updates. Then we clone this into a "service" VM which we convert into a Template to deploy to users. Now, what is the Best Practice to update WIndows OS for the all the users?

1 0

Disk locked after backup
by Fabio Cesar Hansen 19 Sep '19

19 Sep '19

Hi. I am using the https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/download… script to backup my vms. The problem is that always after the backup finishes, the snapshot is locked. Has anyone ever experienced this? Node version: OS Version: RHEL - 7 - 6.1810.2.el7.centos OS Description: oVirt Node 4.3.5.2 Kernel Version: 3.10.0 - 957.27.2.el7.x86_64 KVM Version: 2.12.0 - 18.el7_6.7.1 LIBVIRT Version: libvirt-4.5.0-10.el7_6.12 VDSM Version: vdsm-4.30.24-1.el7 Engine version: 4.3.5.5-1.el7 Thanks

2 1

Re: disable selinux ?
by Strahil 19 Sep '19

19 Sep '19

I think I used to have a vdsm issue a long time ago. Why would you disable SELINUX, it provides various options to adapt to non-SELINUX aware apps. Best Regards, Strahil NikolovOn Sep 19, 2019 10:54, Nardus Geldenhuys <nardusg(a)gmail.com> wrote: > > Hi > > Hope you are well. Quick question. > > Can I disable SELINUX on the ovirt nodes ? Will there be any issues. I know that you cant migrate from SELINUX to DISABLED SELINUX nodes. > > Regards > > Nar

1 0

Re: Linked Clones?
by Strahil 19 Sep '19

19 Sep '19

At least KVM can do that. If I understood correctly, you want a base disk for multiple VMs and the delta should be stored in separate disk, right? I am using VDO (with gluster) under my storage, so any duplicate data is deduplicated (and if yiu enable compression - compressed) by VDO. Have you thought about VDO - it works with almost any block storage ?Of course both technology will reduce the I/O performance compared to raw storage. Also, let's see if actually oVirt has such option... Best Regards, Strahil Nikolov On Sep 19, 2019 10:23, marzoccafabio(a)gmail.com wrote: > > Hi, > > I am approaching and studying oVirt in order to propose the solution to a customer as a replacement for a commercial solution they have now. > They only need Desktop virtualization. > Sorry for the silly question, but I can't find a way to deploy a VM (template) to users as a "linked-clone", meaning that the users' image still refers to the original image but modification are written (and afterwards read) from a new location. This technique is called Copy-on-write. > Can this be achieved with oVirt? > > Fabio > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/3XITFLEJDICOF…

1 0

Upgrade from 4.3.5 rc5 to 4.3.6 rc5 strange errors
by Strahil 19 Sep '19

19 Sep '19

Hello Community, I was waiting for 7.7 to come up before I upgrade my lab. The engine got upgraded without issues, same for OS - but after the system powered up I receive the following: [root@ovirt1 ~]# ssh engine root@engine's password: Last login: Wed Sep 18 19:48:32 2019 from ovirt1.localdomainnet_mlx5: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory net_mlx5: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx5) PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx4) net_mlx5: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory net_mlx5: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx5) PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx4) [root@engine ~]# Anyone else experiecing this ? I can't find libmlx4 or libmlx5 in the repos. P.S.: I have a gluster snapshot, so I can rollback if needed. For now I will postpone my hosts' upgrade. Best Regards, Strahil Nikolov

2 1

how to add devices to a qemu config.xml of a virtual machine
by pascal＠butterflyit.com 19 Sep '19

19 Sep '19

Hi, I would like to be able to share a local folder with my remote desktop hosted by ovirt. Looking everywhere it seems that what is needed is to have spice-webdavd installed on the guest and have qemu set with this channel org.spice-space.webdav.0 I don't see in the web admin interface any ways to add those channels, but found on the web an addon which could maybe work vdsm-hook-qemucmdline but can't find a package compiled for the latest version and how to install it Also I noticed in the latest version of ovirt 4.3.5 there are 2 flags: Enable SPICE file transfer Enable SPICE clipboard copy and paste But that doesn't seem to change anything Any help appreciated

2 2