After distributing the NIOS 9.0.3 software, you must install the latest hotfix available for 9.0.3, which is at present 9.0.3.3 (CHF 3).

For detailed information about NIOS 9.0.3.3 (CHF 3) including hotfix details, reverting the hotfix, validating the hotfix, resolved issues and so on, see the NIOS 9.0.3.3 Release Notes at https://support.infoblox.com/s/downloads (NIOS 9.0.3.3 tab).

Hotfix Guidelines

• PLEASE NOTE: It is important that you complete all steps as instructed in the hotfix release form; failure to comply with the instructions may result in system errors. While we strive to support all our customers, we cannot be held responsible for issues that arise due to deviations from the provided hotfix instructions. You can view the hotfix release form in the KB article published to announce the hotfix release.

• If you have applied a custom hotfix for NIOS 9.0.3, contact Infoblox support before applying NIOS 9.0.3.3 consolidated hotfix.

• If you have applied the 9.0.3.3 consolidated hotfix on the Grid Master and then a new member joins the Grid as part of an auto-synchronization/downgrade, you must reapply the 9.0.3.3 consolidated hotfix on the newly joined member.

• If you are upgrading to NIOS 9.0.3, it is recommended to install CHF 9.0.3.3 at the "distribution complete" stage to avoid any additional steps for activating the changes.

Before Applying the Hotfix

Infoblox recommends that you take a database backup as a precautionary measure before installing the hotfix.

You can apply the hotfix after distributing NIOS 9.0.3. After an upgrade, the hotfix will be in effect without the need for an additional restart.

Applying the Hotfix

Perform the following steps to apply the hotfix:

1. Download the hotfix file to a local workstation.

2. In Grid Manager, from the Grid tab, select the Upgrade tab.

3. Locate Apply Hotfix from the Toolbar and select the To Grid Master and All Grid Members options from the drop-down list.

4. In the Apply Hotfix dialog box, click Select and navigate to the hotfix image file that you downloaded.

5. Upload the hotfix file.

6. Run the show action_to_activate_hotfix CLI command to view the best-suggested action to activate the hotfix.
   Example: show action_to_activate_hotfix infoblox.localdomain
   show action_to_activate_hotfix <member_name>
   This CLI command is available from NIOS version 9.0.3 and it can be run only on the Grid Master. This command only lists what you need to do to complete applying the hotfix. It does not list whether you have completed it or not.

7. If the hotfix is applied at the distribution complete stage, no action is required to activate the hotfix.

8. After applying the hotfix in the active NIOS 9.0.3 version, perform an appliance reboot on all the nodes or type the reboot CLI command on the members on which the hotfix has been applied, to activate the changes. You can click the checkbox next to the Grid member to perform a reboot from the Grid Manager. This action must be performed one Grid member at a time. Selecting the checkboxes of multiple members will grey out the Reboot option.