Red Hat Operating System Installation Tips
This appendix describes the recommended Red Hat operating system installation procedure in three parts and includes the following sections:
•Information About Installing Red Hat for Use with ANM
•Red Hat Installation Procedure
Note The screen captures included in this Appendix are from RHEL Update 2 (5.2). You may find slight variations in screen text when using the other supported versions of RHEL Linux 5 (for example, RHEL 5 Update 6). When in doubt, consult the RHEL documentation at http://www.redhat.com/docs/ for the latest information.
Information About Installing Red Hat for Use with ANM
The procedures in this section are intended as a supplement only and are not meant to replace Red Hat system requirements and end-to-end installation procedures. Use the procedures in this appendix to avoid library conflicts between ANM and Red Hat Enterprise Linux 5 or 5.5 (base server) that might arise when you select certain optional software packages available with the RHEL installation. The Red Hat Enterprise Linux (RHEL) documentation can be found online at http://www.redhat.com/docs/.
Note If you are installing ANM for the first time on a server where it has never been installed, you must install one of the supported Red Hat Enterprise Linux operating systems specified in the "Server Requirements" section5.
Red Hat Installation Procedure
The RHEL installation procedure is divided into three parts. The entire procedure should take approximately one hour, depending on any starts and stops you might require. The installation parts are described in Table A-1.
Table A-1 RHEL Installation Sequence
1. Media check and server partitioning—Allows you to inspect the integrity of the physical installation media (CD-ROMs or DVDs), and to make any adjustments to the partitioning of your Linux environment before installation.
"Media Check and Server Partitioning" section, Steps 1 through 25.
2. Operating system installation—Allows you to install the operating system and any selected libraries and software packages.
"Operating System Installation" section, Steps 27 through 30.
3. Setup Agent guided startup—Allows you to enable, disable, or adjust firewall and other security settings.
"Setup Agent Guided Startup" section, Steps 31 through 35.
Note We do not recommend that you skip any of these steps even if you plan to make adjustments after the installation of ANM.
This topic includes the following prerequisites:
•You have all the RHEL CD-ROMs or DVDs that you purchased or onto which you copied the installation files from the Red Hat website.
•You have verified all system requirements listed in the RHEL documentation at http://www.redhat.com/docs/ and in the "Preparing to Install Application Networking Manager" section.
•You are logged in to your server as root as described in the "Becoming the Root User" section.
The RHEL installation is one procedure, that for ease of understanding, is divided into three parts and labeled accordingly, as described in Table A-1.
Media Check and Server Partitioning
Step 1 Insert the first installation CD-ROM or DVD into the server CD-ROM/DVD drive.
Step 2 Restart the server. This should begin the installation program depending on the BIOS settings that you have set for our Linux server.
Note If the installation does not begin after you restarted the server, you may have to stop the program and readjust the BIOS settings for your Linux server. See your system administrator for assistance.
After approximately a minute, the installer window appears as shown in Figure A-1.
Figure A-1 Red Hat Enterprise Linux 5 Installer Window
Step 3 From the installer window, choose the GUI (graphical mode) by pressing Enter.
Note If you do not choose one of the options that are shown in Figure A-1, the installation defaults to graphical mode.
The CD Found window appears. You are offered the choice of testing the CD media before installation.
Step 4 In the CD Found window, do one of the following:
•Click OK to begin testing the media before installation (recommended), and go to Step 5.
•Click Skip to skip the media test and start the installation (not recommended unless you are reinstalling or have already tested all installation media), and go to Step 10.
Step 5 In the Media Check window, Click Test to test the CD-ROM or DVD in the drive.
As the check process begins, a smaller Media Check window with progress bar displays the percentage of the check completed. The check process takes approximately 3 minutes. When the check process is done, the Media Check Results window appears.
Step 6 In the Media Check window, do one of the following:
•Proceed to Step 7 if the Media Check Results window displays a message indicating the CD-ROM or DVD has passed the check.
•Exit the installation and work with your system administrator to do what is needed to get new media so that you can install RHEL safely if a message appears indicating the CD-ROM or DVD did not pass the check.
Step 7 In the Media Check Results window, click OK to return to the Media Check window.
Step 8 In the Media Check window, click Eject CD to eject the CD-ROM or DVD and insert another for testing.
The Media Check window with a progress bar appears as described in Step 5.
Step 9 Repeat Steps 6 through 8 until you have tested all installation media.
A confirmation window appears stating that all media has been tested.
Step 10 In the confirmation window, click Next to continue with preinstallation setup tasks.
The language and keyboard selection windows appear.
Step 11 Click English for both windows.
The Installation Number window appears requesting you enter an installation number. If the version of RHEL you are installing was purchased with additional packages, you most likely received an installation number. The procedures in this appendix require that you do not install additional software packages or Web server. Even if you have an installation number, it is important that you do not enter it by clicking Skip as noted in Step 12.
Note Even if you have an installation number, do not enter it when prompted. If you enter an installation number you could inadvertently install additional packages that might conflict with the software libraries that are automatically installed with ANM.
Step 12 In the Installation Number window, click Skip. A warning window appears.
Step 13 Click OK.
A partitioning window appears as shown in Figure A-2.
Figure A-2 Red Hat Enterprise Linux 5 Partitioning Window
From the partitioning window, you can remove existing partitions if any or modify an existing hard drive layout to accommodate RHEL. Partitioning, which is the default, causes a reformatting of your hard drive.
Step 14 Click Remove Linux partitions on selected drive and create default layout. A dialog box displays "Are you sure that you want to do this?" because this action will reformat your drive and delete all previous setup partitions.
Step 15 Click Yes.
The Network Devices/Hostname/Miscellaneous Settings window appears as shown in Figure A-3. The installation program automatically detects any network devices that you have and displays them in the Network Devices list.
Figure A-3 Network Devices, Hostname, and Miscellaneous Settings Window
Step 16 In the Network Devices/Hostname/Miscellaneous Settings window, click Edit.
The Edit Interface eth0 window appears as shown in Figure A-4.
Figure A-4 Edit Interface eth0 Window
Step 17 In the Edit Interface eth0 window, check the Enable IPv4 support checkbox and the Activate on boot checkbox.
Note Make sure the Use dynamic IP configuration and Enable IPv6 support checkboxes are unchecked.
The IPv4 IP Address and Prefix (Netmask) fields in the lower portion of the window displayed in Figure A-4 are no longer be grayed out.
Step 18 In the IPv4 IP Address and Prefix (Netmask) fields, enter the IPv4 IP address and netmask.
Step 19 Click OK.
The Network Devices/Hostname/Miscellaneous Settings window appears.
Step 20 In the Network Devices/Hostname/Miscellaneous Settings window, check the Manually check box to enter the server settings for ANM, (see Figure A-5).
Figure A-5 Network Devices, Hostname, and Miscellaneous Settings Window
Step 21 In the Network Devices/Hostname/Miscellaneous Settings window, enter the following information in the Miscellaneous Settings fields:
•Gateway IP address.
•Primary domain name server.
•Secondary domain name server.
Step 22 Click Next.
A world map window appears with a UTC check box that is checked by default as shown in Figure A-6.
Figure A-6 Time Zone Map with UTC Settings Checkbox
Step 23 In the world map window, do one or both of the following:
•Click the region of the world on the map where your server is located (or the one for which you would like the time zone set).
•(Optional) Uncheck the UTC checkbox if you do not want timestamps to appear in Universal Coordinated Time (atomic time).
Note These choices affect the clock that ANM uses when it generates events.
Step 24 Click Next.
A Root Password Configuration Settings dialog box appears as shown in Figure A-7.
Figure A-7 Root Password Configuration Settings Dialog Box
Step 25 In the Root Password and Confirm fields, enter and confirm your root password.
Step 26 Click Next.
Steps 27 through 30 guide you through the operating system installation itself.
Operating System Installation
In the Software Development Web Server Selection window, a progress bar appears indicating that the installation is being retrieved. The progress bar fills in approximately in one minute, and then a Software Development/Web server selection window appears as shown in Figure A-8.
Figure A-8 Software Development Web Server Selection Window
In the Software Development Web Server Selection window, you will see two checkboxes; Software Development, and Web server. Do not check either checkbox.
Note It is essential for the proper functioning of ANM that you do not install any Software Development (optional packages or SDK) or Web server.
Step 27 Click Next.
A window with a progress bar appears indicating that dependencies and packages selected for installation will be installed (even though you did not select any optional packages).
Step 28 Click Next to begin the installation.
The following message displays: "Click next to begin installation of Red Hat Enterprise Linux Server. A complete log of the installation can be found in the file `/root/install.log' after rebooting your system. A kickstart file containing the installation options selected can be found in the file `/root/anaconda-ks.cfg' after rebooting the system."
Step 29 In the Software Development Web Server Selection window, click Next.
A window that lists the number of CD-ROMs needed for installation appears.
Note This step is your last chance to return to earlier screens and change your selections, return to the beginning of the installation program, or perform a media check by choosing Back. If you want to continue with the installation, proceed to Step 30. If you want to discontinue the installation, click Back.
Step 30 In the CD-ROMs Needed for Installation window, click Continue.
The installation proceeds with a separate progress bar window for each CD-ROM or DVD. You are prompted to change media when a new CD-ROM is required to complete the installation. A splash screen displays "Congratulations! Your Red Hat Enterprise Linux installation is now complete!" when the installation is finished.
Note This part of the installation takes approximately 10 minutes. When it is finished, you will see a message that asks you to remove the final CD-ROM or installation DVD and reboot the server. You will now be taken through the RHEL Setup Agent process. Your server automatically reboots.
Setup Agent Guided Startup
After the server reboots a Red Hat welcome window appears followed by a Setup Agent window that tells you that there are a few more steps before your system is ready to use.
Step 31 In the Setup Agent window, click Forward.
The RHEL License Agreement appears in a separate window. You need to scroll down through the text and click Forward to indicate your agreement.
Step 32 In the RHEL License Agreement window, click Forward.
The Red Hat Firewall window appears.
Step 33 In the Red Hat Firewall window, click Enable Firewall.
Disabling the firewall is a security risk. We do
not recommend that you do so.
Step 34 Check the following checkboxes:
•Secure WWW (HTTPS)
A confirmation window appears asking you to confirm your choices.
Step 35 In the confirmation window, do one of the following:
•Click Yes to continue with Setup
•Click No to return to the Firewall window and redo your selections.