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oVirt 4.5.7 upgrade guide for RHEL8 systems
by Kapetanakis Giannis 20 Jan '26

20 Jan '26

oVirt 4.5.7 release is definitely good news and kudos to the devs behind this release. Can we have a documentation ideally on https://www.ovirt.org/documentation/upgrade_guide/ or at least in the mailing list for the upgrade path from RHEL8 (and derivatives) and 4.5.6 to 4.5.7 on newer OS? I see on release notes that only RHEL9+ is supported for both engine and hosts. Our systems, both standalone engine as well as hosts are all on Rocky 8. Will a backup of engine, install of 4.5.7 on new OS and restore from backup will be able to see and manage the non-upgraded RHEL8 hosts? Maybe upgrade the hosts first and the engine later? What is the recommended way of making the upgrade? On more question: RHEL10 does not see v2 hosts. Alma does support them. Are there v2 binaries released for RHEL10 systems (engine and hosts) or should we stick to RHEL9. Thanks, Giannis

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oVirt thick client Python+QT6 - any interest?
by John Boero 17 Jan '26

17 Jan '26

Hi I've been a longtime fan of oVirt since my Red Hat days. I was just playing around with vibe coding a thick client in Python + QT6 to give oVirt the app I think it always deserved. Results are early but pretty slick actually. Is anybody interested in pulling this into the GH org and developing further? An early beta after about 2 hours of playing can be found here: https://github.com/jboero/ovirt_client John Boero

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Unable to install oVirt on RHEL7.5
by SS00514758＠techmahindra.com 15 Jan '26

15 Jan '26

Hi All, I am unable to install oVirt on RHEL7.5, to install it I am taking reference of below link, https://www.ovirt.org/documentation/install-guide/chap-Installing_oVirt.html But though it is not working for me, couple of dependencies is not getting installed, and because of this I am not able to run the ovirt-engine, below are the depencies packages that unable to install, Error: Package: collectd-write_http-5.8.0-6.1.el7.x86_64 (@ovirt-4.2-centos-opstools) Requires: collectd(x86-64) = 5.8.0-6.1.el7 Removing: collectd-5.8.0-6.1.el7.x86_64 (@ovirt-4.2-centos-opstools) collectd(x86-64) = 5.8.0-6.1.el7 Updated By: collectd-5.8.1-1.el7.x86_64 (epel) collectd(x86-64) = 5.8.1-1.el7 Available: collectd-5.7.2-1.el7.x86_64 (ovirt-4.2-centos-opstools) collectd(x86-64) = 5.7.2-1.el7 Available: collectd-5.7.2-3.el7.x86_64 (ovirt-4.2-centos-opstools) collectd(x86-64) = 5.7.2-3.el7 Available: collectd-5.8.0-2.el7.x86_64 (ovirt-4.2-centos-opstools) collectd(x86-64) = 5.8.0-2.el7 Available: collectd-5.8.0-3.el7.x86_64 (ovirt-4.2-centos-opstools) collectd(x86-64) = 5.8.0-3.el7 Available: collectd-5.8.0-5.el7.x86_64 (ovirt-4.2-centos-opstools) collectd(x86-64) = 5.8.0-5.el7 Help me to install this. Looking forward to resolve this issue. Regards Sumit Sahay

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Offline installation - is is possible?
by postecom＠gmail.com 15 Jan '26

15 Jan '26

I have been looking at oVirt for a while. My current virtualization is an older version of RHV. With RHV, I could have my hypervisors completely isolated from the internet and all updates come through Red Hat's Satellite. Is is possible to add the installation repos as a product in Satellite? It is very important that the hypervisors not have access to the Internet, but all the documentation and installation info that I can find wants the hypervisors to use the COPR plugin and have direct access to centos stream. Thank you

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install el10 host with ovirt45-testing
by Jiří Sléžka 02 Jan '26

02 Jan '26

Hi, I am testing host installation from ovirt45-testing repo. I choose Alma Linux 10 for it as it still support Spice. Engine runs also 4.5.7 but on Rocky Linux 9. Other hosts are Rocky Linux 8. First small glitch is that after yum install centos-release-ovirt45-testing the repo centos-ovirt45-testing is disabled by default. I did not mention it and try to create new host witch failed early in Install stage (playbook can't find ovirt packages). I know it is not typical problem but in this case I ended up with host stucked in Install stage and cannot switch it to maintenance and/or remove it. I had to do it directly in db. Second try was without problems but after I set-up network I ended in Non operational mode because "Host does not comply with the cluster emulated machine. The cluster emulated machine is pc-i440fx-rhel7.6.0;pc-q35-rhel8.6.0 and the host emulated machines are pc-q35-rhel9.6.0,pc-q35-rhel9.4.0,q35,pc-q35-rhel9.2.0,pc-q35-rhel9.0.0,pc-q35-rhel10.0.0,pc,pc-i440fx-rhel10.0.0." As I read list archives I could try "Reset Emulated Machine" in Cluster menu. Current emulated machine type is pc-q35-rhel8.6.0. One odd thing is that "Clusters hosts must be down in order to perform this action." which leads me to question whether it is safe or possible in my current mix of el8 and el10 hosts. Cheers, Jiri

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Re: [ovirt-announce]oVirt 4.5.7 - Testing
by Geoff O'Callaghan 23 Dec '25

23 Dec '25

Fantastic! ________________________________ From: Jean-Louis Dupond via Announce <announce(a)ovirt.org> Sent: Thursday, December 18, 2025 7:24 PM To: announce(a)ovirt.org <announce(a)ovirt.org> Cc: Jean-Louis Dupond <jean-louis(a)dupond.be> Subject: [ovirt-announce]oVirt 4.5.7 - Testing Hi, It's been some month since previous announcement. But the moment we've been waiting for is here! I am happy to announce that oVirt 4.5.7 is finally build and ready for testing in our testing repository! You can install the version by installing the `centos-release-ovirt45-testing` package and activate the testing repository by issueing `dnf config-manager --set-enabled centos-ovirt45-testing` This should work on CentOS 9 and 10, but also on AlmaLinux 9 and 10. If there are questions, feel free to reach out on our Matrix channel: https://matrix.to/#/#ovirt:ovirt.tech Currently we are preparing the release notes, and when no major bugs pop-up, the release will happen soon! Changes? Some important/good to know changes since 4.5.6: - Support for new Intel and AMD CPU's - Fixed 2 cases where corruption could occur - CentOS 10 and AlmaLinux 10 support! - PCI slot improvements - New machine type - Cluster version 4.8 - All Java code build on Java21 and compatible with Java11+ - And much more! Thanks Jean-Louis

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oVirt Archived posts
by simon＠justconnect.ie 19 Dec '25

19 Dec '25

Hi All, Can anyone direct me to the archive of posts as there were many incredibly useful posts that were searchable. Now there are about 14 posts in total. Kind regards Shimme

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10_allocate_net error
by eevans＠digitaldatatechs.com 18 Dec '25

18 Dec '25

CentOS-Stream-9 Ovirt 4.5 minimal install- engine log: 2025-02-10 07:53:09,247-06 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (ForkJoinPool-1-worker-11) [2fa77002] EVENT_ID: VM_DOWN_ERROR(119), VM clonezilla is down with error. Exit message: Hook Error: (b'vm net allocation hook: [unexpected error]: Traceback (most recent call last):\n File "/usr/libexec/vdsm/hooks/before_device_create/10_allocate_net", line 91, in <module>\n main()\n File "/usr/libexec/vdsm/hooks/before_device_create/10_allocate_net", line 79, in main\n allocate_random_network(device_xml)\n File "/usr/libexec/vdsm/hooks/before_device_create/10_allocate_net", line 48, in allocate_random_network\n net = _get_random_network()\n File "/usr/libexec/vdsm/hooks/before_device_create/10_allocate_net", line 36, in _get_random_network\n available_nets = _parse_nets()\n File "/usr/libexec/vdsm/hooks/before_device_create/10_allocate_net", line 32, in _parse_nets\n return [net for net in os.environ[AVAIL_NETS_KEY].split()]\n File "/usr/lib64/python3.9/os.py", line 679, in __getitem__\n raise KeyError(key) from None\nKeyError: \'equivnets\'\n\n\n',). It doesn't matter if it's a fresh install or import. I go to ui and edit vm and change to one of the default size templates, usually large, it boots with no nic and I can add a nic once it's booted and restart it, then it gets an IP and is fine unless you shut it down. In that case, you have to go through setting size and adding nic after vm boot. Any help would be appreciated. Thanks in advance/

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ovirt future plans
by Winfried de Heiden 17 Dec '25

17 Dec '25

Hi all, Refering to https://blogs.ovirt.org/2025/09/ovirt-project-update/, I love oVirt coming back. I succesfully run oVirt on AlmaLinux10. Great, I got spice back! But what's the latest status? The latest announcement was from September 2025 :( Is there any release planning, announcement to be expected? Looking forward to it, Winfried

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import VM from Qemu-KVM
by Enrico Becchetti 15 Dec '25

15 Dec '25

Dear all, I've a question about import VM from an external hypervisor. My oVirt is 4.3: N. 3 Dell R7525 servers with CentOS 7 SAN BROCADE and HPE MSA P 2050 (domain: DATA_FC_P2050) 10Gbps network, NFS Server (domain: NFS) I need to import a virtual machine running on a Qemu-KVM server into ovirt. The file type is qcow2, about 100GB. I tried with GUI "Storage->Disk->Upload" but I've got an error: "Connection to ovirt-imageio-proxy service has failed. Make sure the service is installed, configured, and the ovirt-engine certificate is registered as a valid CA in the browser." Can you tell me the correct sequence for this operation and for importing and running the virtual machine in ovirt? Thanks a lot Best Regards Enrico -- __________________________________________________________________________ Enrico Becchetti Servizio di Calcolo e Reti Istituto Nazionale di Fisica Nucleare - Sezione di Perugia Via Pascoli,c/o Dipartimento di Fisica 06123 Perugia (ITALY) Phone:+39 075 5852777 Mobile: +39 075 9696225 FAX: +39 075 5847296 Microsoft Teams: becchett(a)infn.it Mail: Enrico.Becchetti<at>pg.infn.it Pagina web personale: https://www.pg.infn.it/home/enrico-becchetti _________________________________________________________________________

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