Use the rollback feature to remove an update to a package and revert to a previous
version.
Before you begin
- During the rollback process, Installation
Manager must
access files from the earlier version of the package. By default, these files are stored on your
computer when you install a package.
- If you change the default setting or delete the files by using the Remove Saved
Files option, Installation
Manager requires
access to your installation repository or media. To access the Remove Saved
Files option, click . On the OS X operating system, the Preferences option is under
the IBM® Installation Manager menu.
- If you installed the product from a repository, you must list the repository that you used to
install the previous version of the product in your preferences. To check the repositories that are
listed, click .
- If you installed the product from disks or other media, the media must be available when you use
the rollback feature.
About this task
Use the rollback feature to remove an update that you applied to a product package.
- When you roll back a package, Installation
Manager
uninstalls the updated resources and reinstalls the resources from the previous version. You can
roll back only one version level at a time.
- When you roll back to an earlier version of a package, the package is restored with the same
features that are associated with that version. Use the Modify wizard to add and remove
features.
- For installed fixes, a fix is uninstalled if the fix does not apply to the version of the
product that you rolled back to. A fix is not uninstalled if you roll back to a version of the
product that the fix applies to.
- The rollback does not reinstall the fix that was uninstalled during the fix pack
installation.
Consider these examples:
- You installed Fix Pack 1 and Fix Pack 2. You also installed Interim Fix 2, which is applicable
to both Fix Pack 1 and Fix Pack 2. If you roll back Fix Pack 2, you have Fix Pack 1 and Interim Fix
2 installed.
- You installed Fix Pack 1 and Interim Fix 1, which applies only to Fix Pack 1. You also installed
Fix Pack 2. If you roll back Fix Pack 2, you have Fix Pack 1 with no fixes installed.
Note: You cannot roll back Installation
Manager to an
earlier version.
Procedure
To roll back an updated package:
- In Installation
Manager,
click Roll Back to start the Roll Back wizard.
- From the Package Group Name list,
select the package group that contains the packages that you want
to roll back. Click Next.
- Select the version of the package that you want to roll back to and click
Next.
Some packages require entitlement for updates or fixes. If you did not save files for rollback and
you are rolling back to a version that requires entitlement, you must be entitled to the previous
version for the rollback to finish. Entitlement is based on your IBM ID
credentials.
- Read the summary information and click Roll
Back to roll back the package.
On Windows, Installation
Manager checks
for running processes. If processes are blocking the rollback process, the Blocking Processes
section includes a list of these processes. You must click Stop All Blocking
Processes before you continue the rollback process. The processes must be stopped
because these running processes lock files that Installation
Manager must
access or modify. If there are no processes that must be stopped, a list is not shown.