Start Here

This guide describes the upgrade procedure for systems that are already running OpenNebula 6.0.x or newer. The upgrade will preserve all current users, hosts, resources, and configurations, for both SQLite and MySQL/MariaDB back-ends.

Read the Compatibility Guide and Release Notes to learn what’s new in OpenNebula 7.0.

Previous Steps

OpenNebula 7.0 or newer is distributed with onecfg as part of the main server package. This tool simplifies the upgrade process of configuration files, and is always included in the latest version of OpenNebula.

$ onecfg upgrade
FATAL : FAILED - Configuration can't be processed as it looks outdated!
You must have missed to run 'onecfg update' after previous OpenNebula upgrade.

$ onecfg status
...
ERROR: Configurations metadata are outdated.

Upgrade OpenNebula

Update your OpenNebula packages by following only the guide that applies to your current OpenNebula configuration:

• Upgrading a Single Front-End Deployment
• Upgrading an HA Cluster
• Upgrading a Federation

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