Chapter 4. Upgrading from 4.1 to Red Hat Virtualization 4.2
Upgrading your environment from 4.1 to 4.2 involves the following steps:
- Update the 4.1 Manager to the latest version of 4.1
- Upgrade the Manager from 4.1 to 4.2
- Upgrade the hosts
- Update the compatibility version of the clusters
- Update the compatibility version of the data centers
- Replace SHA-1 certificates with SHA-256 certificates
- If you installed the technology preview version of Open Virtual Network (OVN) in 4.1, update the OVN provider’s networking plugin
4.1. Updating the Red Hat Virtualization Manager
Updates to the Red Hat Virtualization Manager are released through the Content Delivery Network.
Procedure
On the Red Hat Virtualization Manager machine, check if updated packages are available:
# engine-upgrade-check
Update the setup packages:
# yum update ovirt\*setup\*
Update the Red Hat Virtualization Manager. The
engine-setup
script prompts you with some configuration questions, then stops the ovirt-engine service, downloads and installs the updated packages, backs up and updates the database, performs post-installation configuration, and starts the ovirt-engine service.# engine-setup
NoteThe
engine-setup
script is also used during the Red Hat Virtualization Manager installation process, and it stores the configuration values supplied. During an update, the stored values are displayed when previewing the configuration, and may not be up to date ifengine-config
was used to update configuration after installation. For example, ifengine-config
was used to updateSANWipeAfterDelete
totrue
after installation,engine-setup
will output "Default SAN wipe after delete: False" in the configuration preview. However, the updated values will not be overwritten byengine-setup
.ImportantThe update process may take some time; allow time for the update process to complete and do not stop the process once initiated.
Update the base operating system and any optional packages installed on the Manager:
# yum update
ImportantIf any kernel packages were updated, reboot the host to complete the update.