You must perform a fresh installation of Oracle Linux 8.8 or later (8.x), or 9.6 or later (9.x) on a host to be configured as a KVM host before deploying a self-hosted engine. You can download the installation Oracle Linux ISO for from the Oracle Software Delivery Cloud at https://edelivery.oracle.com.

1. List active repositories and disable all active external repositories. For example, using Oracle Linux 8:

   dnf repolist

   repo id           repo name
   ol8_UEKR7         Latest Unbreakable Enterprise Kernel Release 7 for Oracle Linux 8 (x86_64)
   ol8_appstream     Oracle Linux 8 Application Stream (x86_64)
   ol8_baseos_latest Oracle Linux 8 BaseOS Latest (x86_64)

   Disable the external repositories:

   dnf config-manager --disable ol8_UEKR7 ol8_appstream ol8_baseos_latest

   Or you can use a script, such as:

   for REPO in $( dnf repolist | awk '{print $1}' | tail -n +2 | grep -v local_ ); do dnf config-manager --disable ${REPO}; done

2. Rerun dnf repolist to confirm no external repositories are active.
3. So the installation can access the local repository, publish the local-oln.repo file to /etc/yum.repos.d directory.
4. Enable the local repositories. For example, using Oracle Linux 8:

   dnf config-manager --enable local_ol8_UEKR7 local_ol8_appstream local_ol8_baseos_latest local_ol8_gluster_appstream local_ol8_kvm_appstream local_ovirt-4.5 local_ovirt-4.5-extra

5. Rerun dnf repolist to confirm that the local repositories are active.
6. When you install the release packages, some external repositories (ol8_gluster_appstream, ovirt-4.5, and ovirt-4.5-extra) are enabled. To prevent the installation from failing because it can't access these external repositories, enable the dnf skip_if_unavailable option:

   dnf config-manager --save --setopt "skip_if_unavailable=True"

7. Install the Oracle Linux Virtualization Manager Release 4.5 package.
   1. (Optional) Without internet access, installing the oracle-ovirt-release-45-eln rpm package takes longer to complete. To speed up the installation, create an entry in the /etc/hosts file pointing yum.oracle.com to localhost, for example:

      echo '127.0.0.1  yum.oracle.com' >> /etc/hosts

   2. Install the release package:

      dnf install oracle-ovirt-release-45-eln

      Note:

      Installing the release package automatically enables/disables the required external repositories. With the skip_if_unavailable configuration, alerts show on the screen that you can ignore.

8. Rerun dnf repolist. If the installation enabled any external repository, disable them.

   for REPO in $( dnf repolist | awk '{print $1}' | tail -n +2 | grep -v local_ ); do dnf config-manager --disable ${REPO}; done

9. If the host runs the Unbreakable Linux Kernel (UEK):
   1. Install the Extra kernel modules package.

      dnf install kernel-uek-modules-extra

   2. Install available updates for all installed packages:

      dnf update

   3. Reboot the host.
10. Install the ovirt-hosted-engine-setup and ovirt-engine-appliance rpm packages. Installing these packages together speeds up the deployment.

    dnf -y install ovirt-hosted-engine-setup ovirt-engine-appliance

11. To instruct the setup process to perform an offline installation and not enable KeyCloak, create a file called /root/extra-vars.yml that contains the following:

    ---
    he_offline_deployment: true
    he_enable_keycloak: false

    Caution:

    The file must begin with three en dashes (---)

12. Deploy the self-hosted engine using the local repository:

    hosted-engine --deploy --4 --ansible-extra-vars="@/root/extra-vars.yml"

13. Answer the on-screen questions to customize the deployment. Refer to the Engine Configuration Options.
14. When the installation completes and the self-hosted engine starts, connect to it using ssh and add the same entry to the /etc/hosts file pointing yum.oracle.com to localhost:

    echo '127.0.0.1  yum.oracle.com' >> /etc/hosts