9iR2DBpreinstall

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Preinstallation Tasks

Module Objectives

Purpose

This module guides you through the process of cleaning up your machine so that you can install the Oracle9i product environment.

Objectives

After completing this module, you should be able to:

	List the hardware requirements of this class
	Deinstall Oracle software
	Check your registry
	Check your system settings
	Reconfigure your TCP/IP services
	Modify the HTML file type settings for Netscape

Checking the Hardware Configuration

Minimum Configuration

For the courses in this series, you need the following hardware configuration or better:

	Pentium III 866 MHz
	Windows NT 4.0 with Service Pack 5
	256 MB RAM
	13 GB disk space free (if you install the entire Oracle Product Stack)

Deinstalling the Software

How to Deinstall All Oracle Software

1.	If you have already installed Oracle software, use Oracle Database Configuration Assistant to delete all current instances. Make sure that the necessary services are started in Control Panel Services before doing this.
2.	Stop all Oracle-related services in the Services control panel.
3.	Deinstall all Oracle products, using the appropriate installers.
4.	Delete all Oracle software directories, including the inventory files in the C:\PROGRAM FILES\ORACLE directory.

How to Uninstall Additional Software

1.	Deinstall the following additional software:
		JDeveloper
		Apache
		JDK
2.	In addition, delete your WKDIR directory if you have already taken any of the courses in this series.

Checking the Registry

How to Check Registry Entries

1.	Select Start > Run, enter REGEDIT, and click OK.
2.	At the Windows NT Registry Editor, expand the HKEY_LOCAL_MACHINE\SOFTWARE registry item.
3.	Delete the ORACLE key.
4.	Expand the HKEY_LOCAL_MACHINE\SYSTEM\ CurrentControlSet\Services registry item.
5.	Delete all keys that begin with ORACLE.
6.	Expand the HKEY_LOCAL_MACHINE\SYSTEM\ CurrentControlSet\Services\EventLog\ Application registry item.
7.	Delete all keys that begin with ORACLE.
8.	Repeat steps 5 through 8 for any other ControlSet references in your register that contain ORACLE keys.

Checking Environment Variables

How to Check Environment Variables

1.	Select Start > Settings > Control Panel and double-click System.
2.	Delete all Oracle-related environment variables (especially any ORACLE_HOME variables).
3.	Delete all Oracle-related paths from the PATH variable.
4.	Delete any reference to the JDK directory from the PATH variable.

Checking Virtual Memory

How to Check Virtual Memory

1.	Select Start > Settings > Control Panel and double-click System.
2.	Click the Performance tab and then click the Change button to open the Virtual Memory window.
3.	You need approximately 512 MB of total memory (256 MB of RAM and 256 MB of virtual memory). However, if you have enough disk space, set virtual memory to 500 MB. Click the Set button. Then click OK.

Reconfiguring TCP/IP Services

How to Reconfigure TCP/IP Services

You must also make sure that the networking structure is set up correctly for installation off the network. If you are using DHCP to provide you with an IP address, you need to set up a static IP address for this example.

1.	Select Start > Settings > Control Panel.
2.	Double-click Network.
3.	Click the Protocols tab.
4.	Select TCP/IP Protocol and then click the Properties button.
5.	Select Specify an IP address.
6.	Enter a valid IP address, subnet mask, and default gateway. If you do not have an IP address, enter a dummy value. Click OK twice.

Note: the Enterprise Manager OMS and Agent do not support DHCP so you need to have a static IP address to use this capability.

Setting the HTML File Type

How to Set the HTML File Type for Netscape

You need to change your HTML settings for the JDeveloper exercise later in the course.

1.	Open Windows NT Explorer.
2.	Select View > Options.
3.	Click the File Types tab.
4.	Select Netscape Hypertext Document and click Edit.
5.	Select the Edit action and click Edit.
6.	Clear the Use DDE check box and click OK.
7.	Click Close twice.

Other Cleanup Tasks

1.	You also need to set up your environment so that the local host name can be resolved without the need to look up DNS. To do this, edit the C:\WINNT\System32\Drivers\Etc\Hosts file. Add the IP address and fully qualified host name for your computer after the localhost line currently in the file. Save your work and close the file.
2.	If you have used a previous version of this OBE before, you must remove your NTOEM user from User Manager.
3.	Reboot your machine.

Module Summary

In this module, you should have learned how to:

	List the hardware requirements of this class
	Uninstall Oracle software
	Check your registry
	Check your system settings
	Reconfigure your TCP/IP services
	Modify the HTML file type settings for Netscape