Correcting my email - you can remove the following on an EL9 or related system. I haven't checked to see what happens on RHEL9 itself, but will later **remove** cat >/etc/yum.repos.d/CentOS-Stream-Extras-common.repo <<'EOF' [c9s-extras-common] name=CentOS Stream $releasever - Extras packages metalink=https://mirrors.centos.org/metalink?repo=centos-extras-sig-extra... gpgkey=https://www.centos.org/keys/RPM-GPG-KEY-CentOS-SIG-Extras gpgcheck=1 repo_gpgcheck=0 metadata_expire=6h countme=1 enabled=1 EOF echo "9-stream" > /etc/yum/vars/stream dnf distro-sync --nobest **remove** Summary is ## Installing on RHEL 9.0 derivatives Once a minimal RHEL 9.0 derivative system has been built, you can install the pre-production master snapshots (oVirt Release 4.5.6 + Engine 4.5.7) ```bash dnf copr enable -y ovirt/ovirt-master-snapshot centos-stream-9 dnf install -y ovirt-release-master ``` At this point you can choose to install the : * Hosted Engine, `dnf install -y ovirt-hosted-engine-setup` * A minimal host, `dnf install -y ovirt-host` NOTE: This is using the latest builds. There hasn't been a release for some time, so your best chance of success is to use these snapshots. When there is a release i'll update the document to include the details. ________________________________ From: Geoff O'Callaghan Sent: Wednesday, March 05, 2025 5:15 PM To: users(a)ovirt.org; fiorletta(a)ssolo.eu Subject: Re: [ovirt-users] Re: Couldn't resolve host name for http://mirrorlist.centos.org/?release=8-stream&arch=x86_64&repo=s... Let me try and break this down into a sequence of steps and let's see where it breaks down for you. Let's start with the simplest scenario. Centos 9 Stream system (6 core, 32Gb memory, 250Gb disk, single 1GbE nic - note i'm doing this in a virt-enabled VM, but bare metal should be similar). This is the sort of information I need to debug your problem. * Build a vanilla Centos 9 Stream system. (non-oVirt node image, but we can do that if you like) * My centos 9 system is called ovnode01.<fqdn> 192.168.1.111 and the manager i'm going to install is emanager.<fqdn> 192.168.1.251, both fqdn's resolve in my DNS (important) * As per https://ovirt.org/download/install_on_rhel.html cat >/etc/yum.repos.d/CentOS-Stream-Extras-common.repo <<'EOF' [c9s-extras-common] name=CentOS Stream $releasever - Extras packages metalink=https://mirrors.centos.org/metalink?repo=centos-extras-sig-extra... gpgkey=https://www.centos.org/keys/RPM-GPG-KEY-CentOS-SIG-Extras gpgcheck=1 repo_gpgcheck=0 metadata_expire=6h countme=1 enabled=1 EOF echo "9-stream" > /etc/yum/vars/stream dnf distro-sync --nobest * * dnf copr enable -y ovirt/ovirt-master-snapshot centos-stream-9 dnf install -y ovirt-release-master * You should get something like this Running transaction Preparing : 1/1 Installing : tar-2:1.34-7.el9.x86_64 1/2 Installing : ovirt-release-master-4.5.6-0.0.master.20240719070214.gitf7ad2c3.el9.noarch 2/2 Running scriptlet: ovirt-release-master-4.5.6-0.0.master.20240719070214.gitf7ad2c3.el9.noarch 2/2 Verifying : ovirt-release-master-4.5.6-0.0.master.20240719070214.gitf7ad2c3.el9.noarch 1/2 Verifying : tar-2:1.34-7.el9.x86_64 * dnf install ovirt-hosted-engine-setup * Apart from this message 'Repository copr:copr.fedorainfracloud.org:ovirt:ovirt-master-snapshot is listed more than once in the configuration' you should have no other repository issues at this time. * 663 packages later..... (my initial builds are minimal installs) * * Remembering the above comment about the dns resolution of this node and the about to be built manager vm - make sure the dns resolves correctly to the systems you're about to build. * hosted-engine --deploy --4 * Pretty much hit enter for most things, except for the following: * Please specify which way the network connectivity should be checked (ping, dns, tcp, none) [dns]:ping * Engine VM FQDN:emanager.<fqdn> * Enter root password that will be used for the engine appliance:<your password> * How should the engine VM network be configured? (DHCP, Static)[DHCP]:Static * Please enter the IP address to be used for the engine VM []:192.168.1.251 # the ip address emanager.<fqdn> resolves to. * Enter engine admin password:<your password> * Please provide the hostname of this host on the management network [ovnode01]:ovnode01.<fqdn> # fully qualified name that we know resolves to the correct ip address. * ....... Lots of stuff happens * [ INFO ] TASK [ovirt.ovirt.hosted_engine_setup : Install oVirt Hosted Engine packages] [ INFO ] ok: [localhost] ... * [ INFO ] TASK [ovirt.ovirt.hosted_engine_setup : Install ovirt-engine-appliance rpm] (sits here for quite a while as the rpm contains the appliance vm, it has to install the rpm, unwind it, copy bits and pieces around etc) * Eventually you'll get to * Please specify the storage you would like to use (glusterfs, iscsi, fc, nfs)[nfs]:nfs * Please specify the nfs version you would like to use (auto, v3, v4, v4_0, v4_1, v4_2)[auto]: * Please specify the full shared storage connection path to use (example: host:/path):192.168.1.250:/ovirtx * If needed, specify additional mount options for the connection to the hosted-engine storagedomain * (example: rsize=32768,wsize=32768) []: ... Please specify the size of the VM disk in GiB: [51]: Building engine vm and shoving it out on NFS (In my case) ... [ INFO ] TASK [ovirt.ovirt.hosted_engine_setup : Shutdown local VM] [ INFO ] changed: [localhost] [ INFO ] TASK [ovirt.ovirt.hosted_engine_setup : Wait for local VM shutdown] ... TASK [ovirt.ovirt.hosted_engine_setup : Copy local VM disk to shared storage] ... [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination [ INFO ] Hosted Engine successfully deployed And hey presto the manager should be at https://emanager.<fqdn> ________________________________ From: Marco Fiorletta Sent: Monday, March 03, 2025 7:00 PM To: Geoff O'Callaghan; users(a)ovirt.org Subject: Re: [ovirt-users] Re: Couldn't resolve host name for http://mirrorlist.centos.org/?release=8-stream&arch=x86_64&repo=s... Hey there, I've been running into a really frustrating issue while trying to set up a self-hosted engine. I've tried multiple times, with different distributions like CentOS Stream 9, AlmaLinux 9.5, and Rocky Linux 9, but I keep hitting the same wall. Essentially, during the engine configuration, I get an error saying that https://mirroros.centos.org is unreachable. I've tried all the repository workarounds I've seen online, changing the pointers and everything, but nothing seems to help. The weird thing is, if I install the engine on a dedicated server, it works fine. It's only when I try to deploy a self-hosted engine that I get this mirror error. Then, just to see what would happen, I gave Oracle Linux a shot. And guess what? The self-hosted engine configured perfectly, without even trying to touch those CentOS repositories. So, that's definitely pointing to some kind of distribution-specific issue. On top of that, I've also run into another problem with the 4.5 distribution related to VLANs. I'm working in a data center with a bunch of VLAN-certified networks. I wanted to set up oVirt 4.5, using a self-hosted engine, and assign one of those VLAN networks to ovirtmgmt. But the installation just flat-out fails because it only seems to accept physical network devices. The only way I could get it to work was to put a switch in place to mask the VLAN, which is a bit of a clunky workaround. My older 4.4-based virtualizer didn't have any of these problems, so I'm wondering if something's changed significantly in 4.5. Any ideas? Best regards On Sun, 2025-03-02 at 20:56 +0000, Geoff O'Callaghan wrote: Hi I'm not sure where things are going wrong for you, so I built a new Centos 9 Stream system and was able to install a self-hosted appliance on it - ie. It got turned into a node and the engine appliance was deployed OK. I just wanted to make sure the current process worked. Can you provide more information on what/how you're doing the installation? It might be that the documentation is wrong, but I will fix it if you can tell me where you're going wrong. Thanks Geoff ________________________________ From: fiorletta--- via Users Sent: Tuesday, February 25, 2025 3:30 AM To: users(a)ovirt.org Subject: [ovirt-users] Re: Couldn't resolve host name for http://mirrorlist.centos.org/?release=8-stream&arch=x86_64&repo=s... I have the same problem. Centos stream 9, ovirt 4.5 the errore is present only on self-hosted-engine. _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/5TXJXB5FCV3... -- [cid:d80ea0d0d3efc5e30a5e8dbbdb04362ac24caae7.camel@ssolo.eu-0]