Installing and uninstalling fix packs

You can use IBM® Installation Manager to update the product with the fix packs that are available for your service level of the product. Uninstalling fix packs to a previously installed level is called rolling back.

Before you begin

For the most current information about upgrades for WebSphere® Application Server and its associated software, see the IBM Software Support Center and Fix Central.

For a list of fix packs that are available for WebSphere Application Server and its associated software and for specific information about each fix pack, perform the following actions.

Go to Fix Central.
Select the Select product tab.
Select WebSphere as the product group.
Select WebSphere Application Server as the product.
Select the version of the product to be updated.
Select your operating system as the platform, and click Continue.
Select Browse for fixes, and click Continue.
Click More Information under each fix to view information about the fix.

About this task

Important: Installation Manager can install any fix-pack level of the product directly; in fact, Installation Manager installs the latest level by default. For example, you can skip fix-pack levels and go from Version 9.0.0.1 directly to Version 9.0.0.5. Keep in mind, however, that later you can not roll back to any level that was skipped. If you directly install to Version 9.0.0.5, for example, you cannot roll back to Version 9.0.0.3. If you skip from Version 9.0.0.1 to Version 9.0.0.5, you can only roll back to Version 9.0.0.1. You should plan your installations accordingly.

When you install a fix pack, Installation Manager automatically reapplies any installed interim fixes if they apply to the updated fix pack level. Interim fixes that do not apply, such as if the updated fix pack contains the fix, are uninstalled. In some cases, Installation Manager must uninstall an interim fix that you must manually reapply. For example, you might update to a fix pack that does not contain the fix and requires an updated interim fix level. Installation Manager notifies you if any interim fixes must be manually reapplied. You can verify which interim fixes are installed by running the versionInfo -ifixes command.

For transitioning users: In contrast to other product offerings, individual fixes for IBM SDK, Java™ Technology Edition are packaged as fix packs with updated time stamps rather than as interim fixes. To install these fixes, follow the instructions in this section. For more information about the IBM Java SDK, see Installing and updating IBM SDK, Java Technology Edition on distributed operating systems.

Tip: You can use the IBM Packaging Utility to generate a new local or web-based repository that contains all of the fixes that you want to install and then use Installation Manager to update the product with all of the fix packs as a group. For information on using the Packaging Utility, see the IBM Installation Manager documentation.

Avoid trouble: The IBM i group PTFs are no longer provided in WebSphere Application Server Version 9.0. To install the newest WebSphere Application Server fix pack on IBM i, make sure that you apply the necessary cumulative package and the group PTF levels listed in WebSphere Application Server for IBM i. Apply the fix pack by using the IBM Web Administration for i Console or by using Installation Manager.

Important: In Network Deployment cells, the deployment manager node must be at the same or a later service level as the cell's application server nodes. You must ensure that the deployment manager node is upgraded to the new service level.