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Need advice before building a new oVirt Environment
by gbigras＠telesat.com 08 Nov '24

08 Nov '24

My question will be down below but before that here is some background info: I currently have a functioning oVirt env (v4.5.7) with two self-hosted nodes (hand-me-down servers) and shared storage (TrueNAS server) with three data domains: one for the EngineVM (iSCSI), one for the VMs (iSCSI) and one for ISO files (NFS). The powers that be, want to move away from TrueNAS and hand-me-downs and have new servers and a new NAS appliance (most likely NetApp). They are the ones who did not want to spend the money on new gear but now they have changed their minds. I wish that I could have started my oVirt env on the new equipment. This new equipment will take at best 2 months to arrive. In the meantime, I have to create various VMs in my existing environment. Once my new gear arrives, what is the recommended approach: 1 - Start from scratch with a new datacenter/cluster env? Can I migrate VMs from one DC to another? The docs seem to say no. I'm guessing, I would have to export first, then import. 2 - Can my new equipment be part of the same DC but a different cluster? I was thinking that option #2 is the right approach. I could start with storage (ie: new NetApp) as part of the new cluster. Once that is part of the cluster, I can add hosts then finally migrate VMs. What say you? thank you in advance.

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Ovirt Storage Monitoring behind RAID
by ankit＠eurus.net 06 Nov '24

06 Nov '24

Hi Folks, I have recently build Ovirt 4.5 cluster with server(DellXC 360 and 730xd) as storage using iscsi target where i want to monitor disks behing RAID(Perc Card). How can i monitor disks in ovirt itself ? Thanks. AS

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Preparing to issue an oVirt release post Red Hat offboarding
by Sandro Bonazzola 01 Nov '24

01 Nov '24

Hi, Oracle fixed CVE-2024-7259 ( https://github.com/oVirt/ovirt-engine/security/advisories/GHSA-8xjm-j7fq-3w… ) in oVirt Engine and would be nice to issue an oVirt Engine release including the fix. As the current master also includes support for new cluster level 4.8, VDSM needs to be released as well providing cluster level 4.8. As you know, Red Hat offboarded the project and as such there are no more people officially assigned to the project from the company, despite a few of the historical developers still spend some of their free time helping out. I can help building the packages and getting them out on my free time but I have no capacity for doing any testing or documentation updates or release notes related to this release. Last oVirt Engine (4.5.6) was also released last February without any formal release announce. Any volunteer to look into differences between current master and current stable release and see if anything else needs to be released other than ovirt-engine and vdsm? Any volunteer to write release notes and update the website accordingly? Any volunteer to run ovirt-system-test on https://github.com/oVirt/ovirt-engine/pull/970 and https://github.com/oVirt/vdsm/pull/422 as OST doesn't run anymore on GitHub? Regards, -- Sandro Bonazzola

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Installation of hosts on RHEL9
by Fabrice Bacchella 31 Oct '24

31 Oct '24

Hi, I’m migrating to oVirst 4.7 and RHEL9. The engine is up and running but I have problems testing adding new hosts. It fails running the command: sudo vdsm-tool ovn-config $IP $FQDN. The message is Traceback (most recent call last): File "/usr/lib/python3.9/site-packages/vdsm/tool/ovn_config.py", line 118, in get_network return networks[net_name] KeyError: '$FQDN' And indeed if I print net_caps in the method net_caps of ovn_config, it says: {'networks': {} ... I have been unable to understand where this information is coming from, what is missing in my host ? Are they the networks as configured in the engine ?

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HostedEngine VM doesn't start because in QXL video type mode
by Mario Indelicato 31 Oct '24

31 Oct '24

Hi, I don't know how this happened but after an host reboot, the HostedEngine VM didn't started anymore. The error in the log is: "unsupported configuration: domain configuration does not support video model 'qxl'" This is a single host test environment, OS is Rocky 9.4, so I know it's expected that QXL video is not supported anymore. I tried editing the HostedEngine VM configuration via virsh, but when I start the VM it keeps trying to use QXL. Also the VM conf in "/var/run/ovirt-hosted-engine-ha/vm.conf" says the video type is always QXL. I tried dumping the XML configuration, edit the XML, undefined e re-define the VM from the updated XML, but still it uses QXL!!! I'm resigned myself that the only solution is to re-deploy the HostedEngine from scratch. Unless some of you can provide an alternative solution. Many thanks in advance Mario

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Updating hosts OS - conflicts with ansible-core
by ivohccarvalho＠gmail.com 28 Oct '24

28 Oct '24

Hi. I'm trying to update my hosts running RHEL 8.6 however I'm getting the following error: [root@euovi01 yum.repos.d]# yum update Updating Subscription Management repositories. Last metadata expiration check: 0:18:58 ago on Mon 28 Oct 2024 04:06:04 PM WET. Error: Problem: package ovirt-hosted-engine-setup-2.6.6-1.el8.noarch conflicts with ansible-core >= 2.13 provided by ansible-core-2.16.3-2.el8.x86_64 - cannot install the best update candidate for package ansible-core-2.12.2-4.el8_6.x86_64 - problem with installed package ovirt-hosted-engine-setup-2.6.6-1.el8.noarch (try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages) What would be the best approach here?

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Call for participation: Virtualization and Cloud infrastructure Room at FOSDEM 2025
by Piotr Kliczewski 28 Oct '24

28 Oct '24

We are excited to announce that the call for proposals is now open for the Virtualization and Cloud infrastructure devroom at the upcoming FOSDEM 2025, to be hosted on Sunday (Feb 2) 2025. This devroom is a collaborative effort, and is organized by dedicated folks from projects such as OpenStack, Xen Project, KubeVirt, QEMU, KVM, and Foreman. We invite everyone involved in these fields to submit your proposals by December 8th, 2024. About the Devroom The Virtualization & IaaS devroom will feature session topics such as open source hypervisors or virtual machine managers such as Xen Project, KVM, bhyve and VirtualBox as well as Infrastructure-as-a-Service projects such as KubeVirt, Apache CloudStack, OpenStack, QEMU and OpenNebula. This devroom will host presentations that focus on topics of shared interest, such as KVM; libvirt; shared storage; virtualized networking; cloud security; clustering and high availability; interfacing with multiple hypervisors; hyperconverged deployments; and scaling across hundreds or thousands of servers. Presentations in this devroom will be aimed at developers working on these platforms who are looking to collaborate and improve shared infrastructure or solve common problems. We seek topics that encourage dialog between projects and continued work post-FOSDEM. Important Dates Submission deadline: 8th December 2024 Acceptance notifications: 10th December 2024 Final schedule announcement: 15th December 2024 Devroom: 2nd February 2025 Submit Your Proposal All submissions must be made via the Pretalx event planning site[1]. It is a new submission system so you will need to create an account. If you submitted proposals for FOSDEM in previous years, you won’t be able to use your existing account. During submission please make sure to select Virtualization and Cloud infrastructure from the Track list. Please provide a meaningful abstract and description of your proposed session. Submission Guidelines We expect more proposals than we can possibly accept, so it is vitally important that you submit your proposal on or before the deadline. Late submissions are unlikely to be considered. All presentation slots are 30 minutes, with 20 minutes planned for presentations, and 10 minutes for Q&A. All presentations will be recorded and made available under Creative Commons licenses. In the Submission notes field, please indicate that you agree that your presentation will be licensed under the CC-By-SA-4.0 or CC-By-4.0 license and that you agree to have your presentation recorded. For example: "If my presentation is accepted for FOSDEM, I hereby agree to license all recordings, slides, and other associated materials under the Creative Commons Attribution Share-Alike 4.0 International License. Sincerely, <NAME>." In the Submission notes field, please also confirm that if your talk is accepted, you will be able to attend FOSDEM and deliver your presentation. We will not consider proposals from prospective speakers who are unsure whether they will be able to secure funds for travel and lodging to attend FOSDEM. (Sadly, we are not able to offer travel funding for prospective speakers.) Code of Conduct Following the release of the updated code of conduct for FOSDEM[3], we'd like to remind all speakers and attendees that all of the presentations and discussions in our devroom are held under the guidelines set in the CoC and we expect attendees, speakers, and volunteers to follow the CoC at all times. If you submit a proposal and it is accepted, you will be required to confirm that you accept the FOSDEM CoC. If you have any questions about the CoC or wish to have one of the devroom organizers review your presentation slides or any other content for CoC compliance, please email us and we will do our best to assist you. Questions? If you have any questions about this devroom, please send your questions to our devroom mailing list. You can also subscribe to the list to receive updates about important dates, session announcements, and to connect with other attendees. See you all at FOSDEM! [1] https://pretalx.fosdem.org/fosdem-2025/cfp [2] virtualization-devroom-manager at fosdem.org [3] https://fosdem.org/2025/practical/conduct/

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IPv4 vs IPv6 vs dual-stack
by Diggy Mc 28 Oct '24

28 Oct '24

With respect to oVirt hosts and the hosted-engine, what are the pros and cons of using just IPv4, or just IPv6, or using both?

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Re: [External] : Lost console access to VMs after updating
by Simon Coter 28 Oct '24

28 Oct '24

Malcom, here the solution to your actual issue: Replace the following file with the attached one: # /etc/httpd/conf.d/olvm45-security-fixes.conf The final fix will be there with release ending with .23. Restart ovirt-engine and httpd services: # systemctl daemon-reload # systemctl restart ovirt-engine # systemctl restart httpd Simon On Oct 14, 2024, at 11:04 PM, Marcos Sungaila via Users <users(a)ovirt.org> wrote: Hi Malcolm, Select the Cluster line at Compute > Cluster and edit it. Then check if in the Console left tab, the Enable VNC Encryption is set. If enabled, you will need to disable it, and using the web UI, put a host into Maintenance mode, then click the Installation button > Reinstall. Marcos -----Original Message----- From: malcolm.strydom(a)pacxa.com <malcolm.strydom(a)pacxa.com> Sent: Monday, October 14, 2024 11:44 AM To: users(a)ovirt.org Subject: [External] : [ovirt-users] Lost console access to VMs after updating We have a couple OLVM instances. Completely separate with their own managers (ovirt-engine). One is lab and one is prod. I updated the lab engine from 4.5.4-1.0.31.el8 to 4.5.5-1.22.el8 and as soon as that was done and it rebooted I no longer can open VM consoles. This was the update process followed: https://docs.oracle.com/en/virtualization/oracle-linux-virtualization-manag… In troubleshooting I checked for the SASL db which appears to be /etc/libvirt/passwd.db # grep sasldb_path /etc/sasl2/libvirt.conf sasldb_path: /etc/libvirt/passwd.db I can verify the vdsm user and realm is in there # sasldblistusers2 -f /etc/libvirt/passwd.db vdsm@ovirt: userPassword We are using noVNC in the browser and when I click on a vm and then console it opens a new window and just has the "connecting" message. I switched to Native VNC client and downloaded the console.vv file which looks normal inside and when I try and open it with vnc viewer or remote-viewer etc. I get a window that connects, authenticates with the password found in the console.vv but then presented with a display that says "Guest has not initialized the display (yet)." Thinking perhaps I need to update the KVM hosts too I proceeded with the update document listed above but even with the hosts updated nothing has changed. If I tail /var/log/messages when opening a console connection all I see is this: Oct 14 10:33:52 olvm2 kernel: sd 6:0:0:1: Warning! Received an indication that the LUN reached a thin provisioning soft threshold. Oct 14 10:34:41 olvm2 saslpasswd2[55701]: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found Oct 14 10:34:41 olvm2 saslpasswd2[55701]: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found Oct 14 10:34:41 olvm2 saslpasswd2[55701]: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found Oct 14 10:34:41 olvm2 saslpasswd2[55701]: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found I checked the production OLVM cluster which has not been updated and has a properly functioning vnc consoles and it produces the exact same errors shown above in the logs when opening a console. So I don't think that error is the cause if the issue although likely something that needs to be fixed. If I check the VM guest log when opening a console I get nothing. tail -f /var/log/libvirt/qemu/<vm_hostname>.log Has anyone else run into this issue when updating? Any ideas on what more I can look at or troubleshoot? Thanks Malcolm _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://urldefense.com/v3/__https://www.ovirt.org/privacy-policy.html__;!!A… oVirt Code of Conduct: https://urldefense.com/v3/__https://www.ovirt.org/community/about/community… List Archives: https://urldefense.com/v3/__https://lists.ovirt.org/archives/list/users@ovi… _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://urldefense.com/v3/__https://www.ovirt.org/privacy-policy.html__;!!A… oVirt Code of Conduct: https://urldefense.com/v3/__https://www.ovirt.org/community/about/community… List Archives: https://urldefense.com/v3/__https://lists.ovirt.org/archives/list/users@ovi…

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Add existing KVM host to oVirt
by gabrielappugliese＠gmail.com 26 Oct '24

26 Oct '24

Hello, I just installed oVirt as a standalone Manager with local databases and i deployed it on a VM thats inside the KVM host i want to add to it. I get its not best practoce but its for a personal lab and i setup ssh to only allow root from the vm where oVirt is installed...anyways i attempted to add the host but its failing with this error ... No package ovirt-hosted-engine-setup available ... to make "ovirt-hosted-engine-setup" available im assuming i have to enable the repositories (Following this guide https://ovirt.org/download/install_on_rhel.html) to make it available but will doing all that allow me to add the kvm host which already has VMs deployed on it able to be managed by ovirt? would this help me achieve what im trying todo? https://ovirt.org/documentation/installing_ovirt_as_a_standalone_manager_wi… Thanks in advance

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