Appendix B: Upgrading to oVirt Engine 4.2 with ovirt-fast-forward-upgrade

If you have oVirt 4.0 or later installed, you can upgrade the Engine to the latest version with the ovirt-fast-forward-upgrade tool. ovirt-fast-forward-upgrade detects the current version of the Engine and checks for available upgrades. If an upgrade is available, the tool upgrades the Manager to the next major version, and continues to upgrade the Manager until the latest version is installed.

**Note:** ovirt-fast-forward-upgrade upgrades the Manager. See [Appendix C: Manually Updating Hosts](appe-Manually_Updating_Hosts) to upgrade the hosts.

Upgrading with ovirt-fast-forward-upgrade

  1. Install the ovirt-fast-forward-upgrade tool:

     # yum install ovirt-fast-forward-upgrade
    
  2. Run the following command to upgrade the Engine, while creating a backup of the current version:

     # ovirt-fast-forward-upgrade --backup --backup-dir=/backup
    

    Note: The oVirt Project recommends using the --backup and --backup-dir options to create a backup of the current Manager. If a backup directory is not specified, the backup is saved in /tmp.

    The --backup option is a wrapper for the engine-backup tool and is equivalent to running the following command:

     # engine-backup --scope=all --mode=backup --file=file_name --log=log_file_name
    

    To restore your backup, run engine-backup in restore mode:

     # engine-backup --mode=restore
    

Alternatively, to upgrade without creating a backup, run the following command:

    # ovirt-fast-forward-upgrade
  1. If there are errors, check the log: /var/log/ovirt-engine/ovirt-fast-forward-upgrade.log.

Prev: Appendix B: Upgrading to oVirt Engine 4.2 with ovirt-fast-forward-upgrade
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Adapted from RHV 4.2 documentation - CC-BY-SA