5
Deinstallation and Reinstallation

This chapter describes the deinstallation and reinstallation process for Oracle9i Application Server Release 2 (9.0.3) (Oracle9iAS 9.0.3). The topics include:

5.1 Deinstallation

This section guides you through the deinstallation process of Oracle9iAS 9.0.3. This section includes the following topics:

In order to successfully deinstall Oracle9iAS 9.0.3 from your host, Oracle recommends deinstalling all secondary (or subsequent) Oracle9iAS 9.0.3 installations before you deinstall the primary (or first) installation.

Your primary installation contains the active Oracle Enterprise Manager Web site (Oracle9iAS Administration Service). If you deinstall the primary installation and there are other installations of Oracle9iAS 9.0.3 on your host, the Oracle Universal Installer requests that you designate one of the remaining Oracle9iAS 9.0.3 installations to be the primary installation. The new primary installation will maintain the configuration information for the remaining Oracle9iAS 9.0.3 installations on the host.

You must stop all Oracle services and applications before starting the deinstallation process. Refer to the Oracle9i Application Server Administrator's Guide for instructions on starting and stopping the Oracle Enterprise Manager Web site.

Note:

Oracle Universal Installer does not permit custom deinstallation of select components of Oracle9iAS 9.0.3 instances. Confirm deinstall objectives before launching deinstallation.

Note:

Use the version of Oracle Universal Installer that comes with this release to deinstall any Oracle products installed on your system.

5.1.1 Deinstalling an Oracle9iAS 9.0.3 Instance

Start the Oracle Universal Installer. Once Oracle Universal Installer is launched, the Welcome screen appears.

Click Deinstall Products.

See Also:
Section 2.6.5, "Starting Oracle Universal Installer"

Review the installations on the Inventory screen and check the one you wish to deinstall. Click Remove.

Note:

The "+" sign before a product name indicates that there are more components and files installed within that particular product. Click on it to view dependent components. If you choose to remove a product or component, then all of its dependent components are also deinstalled. Confirm deinstall objectives before launching deinstallation.

Figure 5-1 Inventory Screen

Text description of deinstallinventory.gif follows.

Text description of the illustration deinstallinventory.gif

The Inventory screen appears when you click Deinstall Products on the Welcome screen, or Installed Products on any screen.

The Inventory screen displays installed components installed in an Oracle home.

The Inventory screen contains the following:

Product Information: View the full location path of the selected component.
Help: Access detailed information about the functionality of the Inventory screen.
Remove: Deinstall all checked components from Oracle home.
Save As: Save the inventory to a text file. A file browser dialog pops up when you click Save As. Enter a file name to save the complete inventory list.
Close: Quit the Inventory screen and return to Oracle Universal Installer.

Verify the components selected for deinstallation, and click Yes.

Figure 5-2 Confirmation Screen

Text description of the illustration deinstallconfirmation.gif

The Confirmation screen lists all the components selected for deinstallation in the Inventory screen. Scroll down the screen to verify selected components.

The following buttons appear on the Confirmation screen:
- Help: Access detailed information about the functionality of the Confirmation screen.
- Yes: Start deinstallation of listed components.
- No: Return to the Inventory screen. Listed components are not removed.
The following Oracle9iAS Administration Service screen appears if you are deinstalling the primary Oracle9iAS installation on the host. Confirm deinstallation objectives and click OK to continue.

Figure 5-3 Oracle9iAS Administration Service Screen

Text description of the illustration adminserv.gif

This screen presents one of the following messages:
```
The active Oracle9iAS Administration Service in your Oracle home is
being deinstalled. There are no other Administration Services available.
```
This message appears when there is only one Oracle9iAS installation on the host and you are about to deinstall it.
```
The active Oracle9iAS Administration Service in your Oracle home is
being deinstalled. Since the Administration Service allows you to manage
this host, there must be one active at all times. To continue to manage
this host you must select one of the following to become the active
Administration Service.
```
A drop down list allows you to choose a new active Administration Service.

This message appears when there are multiple Oracle9iAS installations on the host and you are about to deinstall the primary installation. You can select one of the remaining Oracle9iAS installations which will then become the primary installation and the new location for the Oracle9iAS Administration Service.
Monitor the deinstallation process.

The Remove Progress Bar screen appears when you click Remove. The installer detects all components chosen for deinstallation from the Inventory screen and removes them from Oracle home.
- Cancel: To discontinue the deinstallation process.
  
  Note:
  If you deinstall a product or component, then all of its dependent components will also be deinstalled.
Following deinstallation of Oracle9iAS 9.0.3 using Oracle Universal Installer, restart your computer to stop any remaining processes associated with the deinstallation.
Perform the following manual tasks to remove all remaining references to the instance from your computer:
1. Back up any files you want to save from the Oracle home directory for this instance.
2. Delete the Oracle home directory for this instance.
3. As the root user, open /etc/oratab in a text editor. Remove all lines that include the Oracle home directory.
If your Oracle9iAS 9.0.3 was associated with an Oracle9iAS Infrastructure on another host, then you must manually remove entries from the Oracle Internet Directory. Refer to the Oracle9i Application Server Administrator's Guide for further instructions.

5.1.2 Deinstalling by Manually Removing All Oracle Products

The following steps remove all Oracle products from your computer.

Caution:

These instructions remove all Oracle components, services, and registry entries from your computer. Exercise extreme care when removing registry entries. Removing incorrect entries can cause a system failure. Oracle recommends following these steps after trying all other options.

If your Oracle9iAS 9.0.3 installation is associated with an Oracle9iAS Infrastructure that is on another host, then remove it from the DCM repository by running the following command:
```
prompt> ORACLE_HOME/dcm/bin/dcmctl destroyInstance -i myInstance
```
Stop all Oracle9iAS 9.0.3 processes.
Log in as the root user.
Delete the oracle directory located under /var/opt directory. Delete the following files if they exist:
- /etc/oratab
- /etc/oraInst.loc
- /etc/emtab
Delete the oraInventory directory.
Delete all directories and files located in your ORACLE_HOME directory.
Delete any Oracle files located in the /tmp and /var/tmp directories.
Reboot the system.
If your Oracle9iAS 9.0.3 was associated with an Oracle9iAS Infrastructure on another host, then you must manually remove entries from the Oracle Internet Directory. Refer to the Oracle9i Application Server Administrator's Guide for further instructions.

5.2 Reinstallation

Oracle Universal Installer does not allow reinstallation of Oracle9iAS 9.0.3 over an installed version. To reinstall Oracle9iAS 9.0.3 over the same version, deinstall and then install the product.

If you deinstall an Oracle9iAS 9.0.3 instance that uses an Oracle9iAS Infrastructure 9.0.2, you cannot reuse the same Oracle9iAS 9.0.3 instance name of that deinstalled instance when installing subsequent Oracle9iAS 9.0.3 instances. In order to reuse the Oracle9iAS 9.0.3 instance name, you must manually delete the entry for the deinstalled Oracle9iAS 9.0.3 instance in Oracle Internet Directory.

See Also:

Section 5.1, "Deinstallation"
Oracle9i Application Server Administrator's Guide

5 Deinstallation and Reinstallation