Migrating KVM Hosts to 4.5

After you upgrade the engine or self-hosted engine to Oracle Linux Virtualization Manager Release 4.5, migrate each Oracle Linux 8 KVM host from the 4.4 repositories to the 4.5 repositories and then upgrade the host from the Administration Portal.

Important:

Upgrade the KVM hosts after you complete the engine or self-hosted engine upgrade.

Caution:

Upgrade hosts one-by-one. Ensure that the cluster has at least one other available host so that virtual machines can be migrated when you place a host into maintenance mode.

  1. Pick a host to migrate and migrate (or shut down) the virtual machines that are running on the host.

    You can use Live Migration to minimize downtime. See Migrating Virtual Machines between Hosts.

    Any CPU-pinned virtual machines must be shut down and started on another available KVM host.

  2. Put the host into maintenance mode.

    See Moving a Host to Maintenance Mode.

  3. On the KVM host, install the Oracle Linux Virtualization Manager Release 4.5 release package:

    dnf install oracle-ovirt-release-45-el8

    Note:

    For ULN registered hosts or if you're using Oracle Linux Manager, ensure you have subscribed to ol8_x86_64_ovirt45 and ol8_x86_64_ovirt45_extras.

  4. If the host is running UEK R7, install the additional kernel modules package, and then reboot the host:

    dnf install kernel-uek-modules-extra
reboot

  5. From the Administration Portal, upgrade the host:

    1. Go to Compute and then select Hosts.
    2. Select a blank or non-linked cell for the host.
    3. Select Installation and then Check for Upgrade.
    4. From the Upgrade Host window, select OK.
    5. When an upgrade is available, select Installation and then Upgrade.
    6. From the Upgrade Host window, select OK to begin the upgrade process.

  6. When the upgrade completes, activate the host.

    See Activating a Host from Maintenance Mode.

  7. Repeat these steps for each remaining Oracle Linux 8 KVM host in the cluster.

Important:

After the engine and all KVM hosts are upgraded and verified, remove the release package for version 4.4 on the engine and on all KVM hosts:

dnf remove oracle-ovirt-release-el8