You cannot back out service without removing the entire product. You are strongly recommended to keep a backup image or previous GA CD or fix pack readily available in case you encounter any problems after installing service.
Maintenance updates for WebSphere Business Integration Message Broker are available through a download from a web site, in the form of a Program Temporary Fix (PTF), also known as a fix pack. Fix packs are cumulative, so you do not need to install Fix Pack 1 before you can install Fix Pack 2. However, the GA code must have been installed first to activate the licensing requirements. You can find the latest information about available fix packs on the WebSphere MQ Support Web page
Fix packs for WebSphere Business Integration Message Broker are installed using the same technology as for the GA release. This means that product files are consistently tracked and updated appropriately.
You cannot remove individual fix packs without uninstalling the entire product. If you want to restore a system to a previous service level, you must uninstall the entire product, reinstall the GA level of the product, and then install the desired level of fix pack.
If you have any interim fixes applied to your existing installation, contact your IBM Service representative for instructions and possible updated interim fixes for the fix pack level you are installing.
You can download the latest fix pack from the WebSphere Business Integration Brokers Support Web page. Scroll down the page and select the WebSphere Business Integration Message Broker product.
You must read the multiplatform memo. To access the memo, go to the View Memo column, and click the Details link.
To begin the download process, go to the Download PTF/Fix Pack column and click the link for your desired platform (with name of the form Fix Pack XX Unnnnnn, where XX is the number of the fix pack, and Unnnnnn is the fix pack file name). Follow the instructions on the IBM Downloads site, where you will be guided through a three stage process of Configure, Register, and Download. Select a suitable destination as the target for download.
To apply maintenance updates to WebSphere Business Integration Message Broker:
Related tasks
Finding the latest information
Mounting CDs on HP-UX
Uninstalling service on HP-UX
Problems when installing
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Installation command line options
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