Uninstall a WebSphere Application Server product from an AIX system
by running the uninstaller program and performing some manual steps to remove
log files and registry entries. Such registry entries can prevent you from
reinstalling the product into the original directory. If you are not planning
to reinstall, you do not have to uninstall manually.
Before you begin
The
uninstaller program removes all profiles by default, including all
of the configuration data and applications in each profile. Before
you start the uninstall procedure, back up the config folder,
the installableApps folder, and the installedApps folder
of each profile, if necessary, or use the -OPT removeProfilesOnUninstall="false"
parameter on the uninstall command.The uninstaller program leaves
all profiles, including all of the configuration data, applications,
and other user data in each profile. Use the -OPT removeProfilesOnUninstall="true"
parameter on the uninstall command to delete all
of the data, or delete it manually at a later time, if you decide
the data is unnecessary.See Using command line tools for a description of
managing configuration files. Back up all applications that are not
stored in another location.
Determine the
installation root directory for the product so that you remove the
correct product and produce a clean system.
About this task
Reinstalling
the product into a new directory when files remain from a previous
installation can create a coexistence scenario. However, you can delete
all files and registry entries to completely remove a WebSphere Application
Server product. A clean system lets you reinstall the product into
the original directory without coexistence.
Default
directories are shown in the following planning table:
The installation wizard and the Profile Management tool provide an override
for your own locations for root directories.
Use
the installRegistryUtils command
to examine the installation locations for all installed WebSphere
Application Server products.
Perform the following
procedure to produce a clean system.
Procedure
- Log on as the same user ID who installed
the product.
- Use the kill command to
kill all Java processes that are running.
If running
Java processes are not related to WebSphere Application Server products
and it is not possible to stop them, stop all WebSphere Application
Server product-related processes. Use the following command to determine
all processes that are running:
ps -ef | grep java
Stop
all WebSphere Application Server-related processes with the
kill command.
kill -9 java_pid_1 java_pid_2...java_pid_n
- Run the uninstaller program for the Web server
plug-ins for WebSphere Application Server.
If a Web
server is configured to run with the application server, uninstall
the plug-ins to remove the configuration from the Web server. See Uninstalling the Web server plug-ins for WebSphere Application Server.
- Issue the uninstall command.
If you have already run the uninstaller program
or if you cannot run the uninstaller program, skip this step.
See the description of the uninstall command for more information.
The
Uninstaller wizard begins and displays the Welcome panel.
- List WebSphere Application Server components that are installed.
Type the following command to search for related packages:
lslpp -l| grep -i WS
Do not remove packages for WebSphere Application
Server products that you are not uninstalling. Version 6.1 package
names have a prefix of WSB or WSP and a suffix of 61. WSC package
names do not have a suffix of 61.
- Change directories to the /usr/IBM directory,
or the equivalent top directory of your install.
- Type rm -rf WebSphere to delete this WebSphere
Application Server-related directory, but only if the AppServer directory
is the only directory within the WebSphere directory.
Delete the directory if the only products contained in the directory are products
that you intend to delete.
- Use the installRegistryUtils command
to examine the installation locations for all installed WebSphere
Application Server products and remove the desired products from the
install registry.
- Edit the vpd.properties file.
The file is located in the root directory or
in the /usr/lib/objrepos directory.
Do not delete
or rename the vpd.properties file because the InstallShield
MultiPlatform (ISMP) program uses it for other products that it installs.
If the WebSphere Application Server product that you are uninstalling is the
only product with entries in the vpd.properties file,
you can delete this file.
At this point, it should be possible to reinstall
WebSphere Application Server. If not, run the odmclean.sh and aixclean.sh scripts
as described in the next step.
- Run the manual complete cleanup scripts on the WebSphere Application
Server Support site. Obtain the scripts from the technote document titled, Manual complete cleanup scripts for WebSphere Application
Server V5.0, V5.1, V6.0, and V6.1 on AIX and IBM HTTP Server V1.3, V2.0, V6.0,
and V6.1 on AIX .
Carefully review the technote and download
one or both of the attached scripts. Note that one of the scripts is intended
for cleaning WebSphere Application Server product entries, and the other script
is intended for cleaning IBM HTTP Server product entries. The technote contains
helpful reference information regarding the WebSphere Application Server installer's
use of the AIX ODM.
Results
This procedure results in having
a clean system. You can reinstall into the same directories now. A
clean system has no trace of a previously deleted installation.