Uninstalling IBM MQ on Solaris

On Solaris, we can uninstall the IBM MQ server or client using the pkgrm command.

Before you begin

If any updates have been applied, remove them before starting this uninstallation procedure. For more information, see Restoring the previous maintenance level on IBM MQ on Solaris.

Restriction: On Solaris, we cannot remove components from an installation. There is no supported method of doing this. Important: You must stop all IBM MQ queue managers, other objects, and applications, before you begin the process to uninstall or modify IBM MQ.

Procedure

1. Stop all IBM MQ applications associated with the installation you are uninstalling or modifying, if we have not already done so.
2. For a server installation, end any IBM MQ activity associated with the installation you are uninstalling:
   1. Log in as a user in the group mqm.
   2. Set up your environment to work with the installation you want to uninstall. Enter the following command:

      . MQ_INSTALLATION_PATH/bin/setmqenv
      

      where MQ_INSTALLATION_PATH refers to the location where IBM MQ is installed.
   3. Display the state of all queue managers on the system. Enter the following command:

      dspmq
      

   4. Stop all running queue managers associated with the installation you want to uninstall. Enter the following command for each queue manager:

      endmqm QMgrName
      

   5. Stop any listeners associated with the queue managers. Enter the following command for each queue manager:

      endmqlsr -m QMgrName
      

3. Log in as root.
4. Uninstall IBM MQ using pkgrm:
   1. On a system with a single installation, enter the following command:

      pkgrm mqm
      

   2. On a system with multiple installations:

      pkgrm mqm-suffix
      

      where suffix is the unique name given to the packages when crtmqpkg was run at installation time. suffix is included in each of the package names that belong to a particular installation. The first installation on the system does not have a suffix, and is uninstalled using the same method as for a single installation.

   If a package has a dependency on mqm, pkgrm returns the name of the package. Uninstall the dependent packages first.

Results

After uninstallation, certain files under the directory trees /var/mqm and /etc/opt/mqm are not removed. These files contain user data and remain so subsequent installations can reuse the data. Most of the remaining files contain text, such as INI files, error logs, and FDC files. The directory tree /var/mqm/shared contains files that are shared across installations, including the executable shared library libmqzsd.so.

What to do next

• If the product successfully uninstalled, we can delete any files and directories contained in the installation directory.
• If there are no other IBM MQ installations on the system, and you are not planning to reinstall or migrate, we can delete the /var/mqm and /etc/opt/mqm directory trees, including the file libmqzsd.so. Deleting these directories destroys all queue managers and their associated data.