6 Accessing the Installation Software

Enterprise Manager Grid Control (Grid Control) software is available on a DVD-ROM, or you can download it from the Oracle Technology Network (OTN) Web site. Oracle Management Agent (Management Agent) is one of the core components of Grid Control and therefore, it can be installed using the Grid Control installer. Alternatively, you can download the Management Agent software separately from My Oracle Support (formerly Metalink) using the Grid Control console.

This chapter describes the following:

Accessing the Software from a Remote DVD Drive (UNIX Only)
Accessing the Software on Remote Hosts Using Remote Access Software
Downloading Management Agent Software Using Grid Control Console
Using Oracle Universal Installer

Accessing the Software from a Remote DVD Drive (UNIX Only)

If the computer where you want to install Grid Control does not have a DVD drive, you can access the software and perform the installation from a remote DVD drive by mounting (sharing) that DVD drive.

Setting the Mount Point for the DVD-ROM on Linux

On most Linux systems, the disk mounts automatically when you insert it into the disk drive. To mount the disk, complete the following steps:

Insert the Oracle Enterprise Manager DVD into the disk drive.
To verify if the disk is automatically mounted, enter the following command:
- On Red Hat Enterprise Linux:
```
# ls /mnt/cdrom
```
- On SUSE Linux Enterprise Server:
```
# ls /media/cdrom
```
If the command in step 2 fails to display the contents of the disk, enter the following command:
- On Red Hat Enterprise Linux:
```
# mount -t nfs <host name>:/mnt/<full path to the dvdrom>
```
- On SUSE Linux Enterprise Server:
```
# mount -t nfs <host name>:/media/<full path to the dvdrom>
```

Setting the Mount Point for the DVD-ROM on AIX

On most AIX systems, the disk mounts automatically when you insert it into the disk drive. To manually mount the disk, complete the following steps:

Switch the user to root user by executing the following command:
```
$ su -root
```
If required, enter a command similar to the following to eject the currently mounted disk and to remove it from the drive:
```
# /usr/sbin/umount /<SD_DVD>
```
Insert the disk into the drive.
Enter a command similar to the following:
```
# /usr/sbin/mount -rv cdrfs /dev/cd0 /SD_DVD
```
In this example command, /SD_DVD is the disk mount point directory and /dev/cd0 is the device name for the disk device.
If Oracle Universal Installer displays the Disk Location dialog box, enter the disk mount point directory path. For example: /SD_DVD

Accessing the Software on Remote Hosts Using Remote Access Software

Consider a scenario where the remote computer has the hard drive and will run Grid Control, but you do not have physical access to the computer. You can perform the installation on the remote computer, provided it is running remote access software such as VNC or Symantec pcAnywhere. You also need the remote access software running on your local computer.

You can install Grid Control on the remote computer in one of two ways:

If you have copied the contents of the Oracle Enterprise Manager Grid Control DVD to a hard drive, you can install from the hard drive.
You can insert the DVD into a drive on your local computer, and install from the DVD.

Installing from a Hard Drive

If you have copied the contents of the Oracle Enterprise Manger DVD to a hard drive, you can install from the hard drive. The steps that you need to complete are the following:

Ensure the remote access software is installed and running on the remote and local computers.
Share the hard drive that contains the Oracle Enterprise Manager DVD.
Map a drive letter on the remote computer to the shared hard drive. You would use the remote access software to do this on the remote computer.
Run Oracle Universal Installer on the remote computer using the remote access software. You can access Oracle Universal Installer from the shared hard drive.

For more information on running the installer, see Starting the Installer for more information.

Installing from a Remote DVD Drive

You can insert the DVD into a drive on your local computer, and install from the DVD.The steps that you need to complete are the following:

Ensure the remote access software is installed and running on the remote and local computers.
Share the DVD content on the local computer.

Map a drive letter on the remote computer to the shared hard drive. You would use the remote access software to do this on the remote computer.
Run Oracle Universal Installer on the remote computer using the remote access software. You access Oracle Universal Installer from the shared DVD drive.

For more information on running the installer, see Starting the Installer for more information.

Downloading Management Agent Software Using Grid Control Console

The Management Agent software is also available on My Oracle Support (formerly Metalink) Web site and can be downloaded using the Download Agent Software application in the Grid Control console. The software is available in the form of a ZIP file. You can choose to download it in the default location, that is, the OMS home, or in a custom location.

Note:

The Download Agent Software application is available only in Enterprise Manager 10g Grid Control Release 5 (10.2.0.5).

This installation guide is mainly for the base release, that is, Enterprise Manager 10g Grid Control Release 2 (10.2.0.1) Use this guide to install the base release and then patch it with 10.2.0.5 Grid Control patch set to migrate to Enterprise Manager 10g Grid Control Release 5 (10.2.0.5). The 10.2.0.5 Grid Control patch is available on My Oracle Support (formerly Metalink).

Before downloading the Management Agent software, meet the following prerequisites:

Set the My Oracle Support (formerly Metalink) credentials in Grid Control. To do so, click Setup. In the Overview of Setup page, from the menu bar on the left, click Patching Setup. For more information, click Help on that page.
Set the proxy settings if you have a proxy server in your environment. To do so, click Setup. In the Overview of Setup page, from the menu bar on the left, click Patching Setup and then click Proxy & Connection Settings. For more information, click Help on that page.
Ensure that the download location, that is, the directory where you want to download the software, is writable.

To download the Management Agent software using the Grid Control console, do the following:

In Grid Control, click Deployments. Grid Control displays the Deployments page.
On the Deployments page, from the Agent Installation section, click Download Agent Software. Grid Control displays the Download Agent Software page.

On the Download Agent Software page, in the Available Agent Software section, select the Management Agent software you want to download:

The following describes the elements of this table:

Table 6-1 Element Description - Available Agent Software - Downloading Management Agent

UI Element on the Screen	Input Required
Platform	Platform for which the Management Agent is supported. While the first part of the platform name refers to the name of the supported operating system, the second part in parenthesis refers to the type of operating system, that is, 32-bit or 64-bit. A 32-bit software can be installed only on a 32-bit operating system that is running on a 32-bit hardware. Similarly, a 64-bit software can be installed only on a 64-bit operating system that is running on a 64-bit hardware. Do NOT try to install a 32-bit software on a 64-bit platform or vice versa; the installation may proceed, but will fail eventually. Therefore, ensure that you download the right software for the right platform. To determine the type of your operating system, refer to document ID 421453.1 available on My Oracle Support (formerly Metalink). You can access My Oracle Support at `http://metalink.oracle.com/`.
Version	Version can be one of the following: 10.2.0.4, which is Oracle Management Agent 10g Release 4 (10.2.0.4) 10.2.0.3, which is Oracle Management Agent 10g Release 3 (10.2.0.3) 10.2.0.2, which is Oracle Management Agent 10g Release 2 (10.2.0.2) 10.2.0.1, which is Oracle Management Agent 10g Release 2 (10.2.0.1)
Available On This OMS	Indicates whether the Management Agent software is already available in the default location of the OMS from where Grid Control is being accessed. In case of multi-OMS environment, the OMS referred here is the Management Server shown in the OMS field on top of the page. Note: This column indicates whether the software is already available only in the default location of the OMS. It does not indicate the presence of software downloaded to a non-default location or a shared location. The values can be one of the following: True, which means the software is already available on Oracle Management Service (OMS). You do not have to download it again. False, which means the software is not available on OMS. You may want to download it.
Size (MB)	Size (in megabytes) of the software ZIP file available for download. Note that Grid Control actually downloads the ZIP file to the staging location and extracts the contents in the same location. The total size of all the extracted files may be more than the size mentioned here. Therefore, the space required in the staging location is at least double the size of the what is mentioned here.

In the Staging Location section, select the location where you want to stage the Management Agent software.
- Select Default Location if you want to download the Management Agent software to the default location, that is, to the Oracle home directory of the OMS (the one shown on top of the screen against the field Oracle Management Service). The default download location on the OMS is <OMS_HOME>/sysman/agent_download/<version>.
  
  In case of a single OMS environment, Grid Control downloads the software ZIP file to the default location, extracts the files to the same location, and then deletes the ZIP file, leaving only the extracted files. In case of a multi-OMS environment, Grid Control downloads the software ZIP file and extracts the files to the first OMS home (the OMS shown in the OMS field on top of the screen), then copies the ZIP file to the next OMS home and extracts the files there as well. Once all OMS homes have the software, Grid Control deletes the ZIP file from each of the OMS homes, leaving only the extracted files.For a multi-OMS environment, you must provide the credentials to access the Oracle home directories of the OMSes in the environment.
  - Select Use Oracle Home Preferred Credentials if you want to use preferred credentials stored in the Management Repository.
  - Select Override Oracle Home Preferred Credentials if you want to override them with new set of credentials. If you select this option, you can specify either the same credentials or different credentials to access the OMSes in your environment, depending on how they are configured.
- Select Custom Location and specify a location of your choice if you want to download the Management Agent software to a custom location. The custom location must be accessible from all the remote hosts and OMSes, and must have 'write' permission.
  
  Note:
  If you select this option, then ensure that you select Another Location in the Agent Deployment application while installing the Management Agent.
  
  This is an ideal choice under the following conditions:
  - When you have a shared, mounted location that is visible on all OMSes. The shared location can be anywhere in the enterprise configuration.
  - When you do not want Grid Control to download the software and extract the files on all the OMSes automatically. This way, you can download the software to one particular location and manually copy the files to other OMSes, whenever required.
  If the custom location already exists (that is, if you have manually created it), then Grid Control simply downloads the software ZIP file to that location. However, if the location does not exist, then Grid Control automatically creates the directories and then downloads the software there. If you already have a copy of the software in the default location, then Grid Control overwrites that with the version selected for download.
  
  Grid Control downloads the software ZIP file to the custom location, extracts the files to the same location, and deletes the ZIP file. If you have multiple OMSes, you have to manually copy the extracted files to other OMSes.
Click Download to download the Management Agent software.

Using Oracle Universal Installer

The Enterprise Manager installation uses Oracle Universal Installer, a Java-based graphical user interface application that enables you to install Oracle components from a DVD, multiple DVDs, or the Web.

Specifying a Temporary Directory

When you start Oracle Universal Installer (OUI), it automatically copies some executable files and link files into the default /tmp directory (C:\Documents and Settings\<user ID>\Local Settings\Temp on Microsoft Windows) on the machine. If the machine is set to run cron jobs (along with many other processes that may be running) periodically, these jobs attempt to clean up the default temporary directory, thereby deleting some files and causing OUI to fail.

If there are any cron jobs or processes that are automatically run on the machines to clean up the temporary directories, ensure you set the TMP or TEMP environment variable to a different location (than the default location) that is secure on the hard drive (meaning a location on which the cleanup jobs are not run). Also ensure that you have write permissions on this alternative TEMP directory. This must be done before you execute runInstaller (setup.exe on Microsoft Windows).

Note:

Specifying an alternative temporary directory location is not mandatory, and is required only if any cron jobs are set on the computers to clean up the /tmp directory.

Starting the Installer

Start Oracle Universal Installer by running the runInstaller (or setup.exe on Microsoft Windows) from the top-level directory of the DVD.

Alternatively, you can change the directory to the Parent Directory (or the root directory) where you will install the Oracle home, then specify the full path to /runInstaller (setup.exe on Microsoft Windows).

To specify a response file for a silent installation, use the following command:

$ ./<runInstaller or setup.exe> -responseFile <responsefile_location> <optional_parameters> -silent