Remote OS Installation
Remote OS Installation |
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Table 24.2 describes the Client Installation Wizard screens that are downloaded when a new remote boot–enabled client is started for the first time. The file names and any customization information are listed as well.
Table 24.2 Client Installation Wizard Screens
| Screen | Filename | Description and Customization |
|---|---|---|
| Welcome screen | Welcome.osc | The first screen displayed to the user. You can customize this welcome screen to display a specific company message, or to provide information to users prior to installing the operating system. You can also modify the welcome screen to support multilanguage choices. For more information about multilanguage choices see "Multilanguage RIS Servers" later in this chapter. |
| Logon screen | Login.osc | Requires a user to log on. The user logs on to the network using their existing user account, password, and domain. After the user successfully logs on, RIS uses the credentials entered by the user to determine which installation options should be displayed to the user on the Setup Options screen, based on the RIS Group Policy settings that apply to the user. If the process is not successful, and the logon account, password, or domain is not recognized, the user is prompted to log on again. |
| Setup Options screen | Choice.osc | Displays setup options to the user: Automatic, Custom, Restart, Maintenance and Troubleshooting. The degree to which this screen and its options are displayed is controlled through RIS Group Policy settings. The other possible setup options available to users through this screen are described in "Controlling Client Setup Options" later in this chapter. |
| OSAuto.osc | This screen is not displayed to users. Performs a check to see if a computer account object already exists in Active Directory with the same GUID as the computer running the Client Installation Wizard. If a duplicate GUID is found, DupAuto.osc is displayed. If no duplicate GUID is found, OSChoice.osc is displayed. | |
| Error screen | DupAuto.osc | If a duplicate GUID is found in Active Directory, the user is presented with this screen. This screen instructs the user to contact the network administrator. |
| Operating system choice screen | OSChoice.osc | Displays the list of operating system images on the RIS server that are available to the logged-on user. If there is only one possible image for the user to install, then that image is selected and the user does not see this screen. (When RIS is initially installed, the user only has one choice on the screen.) When an operating system image choice is added to a RIS server it is available for all users who receive service from that server. For information about controlling access to operating system images, see "Setting Security Permissions in Answer Files" earlier in this chapter.
Depending on how you choose to implement Remote OS Installation in your organization, you might prefer to automate users' selection of operating system images or to allow users to select the operating system image that best fits their role in the company. Consider carefully how these different methods suit your organization's desktop management philosophies prior to implementing the Remote OS Installation feature. |
| Caution screen | Warning.osc | The caution screen displays a warning message that the hard disk will be formatted. The user is cautioned that an operating system is about to be installed on this computer, which requires the local hard disk to be repartitioned and formatted, thus erasing all data that currently reside on the disk. |
| Summary screen | Install.osc | The summary screen displays information about the computer including: computer name, computer GUID, and the RIS server to be used for downloading the image. Pressing any key begins the installation process.
At this point, the RIS server has created a computer account object in Active Directory for this computer. The RIS server is now able to look up this computer and associate the computer name and other settings if this computer is reinstalled. If you were running Client Installation Wizard to pre-stage the computer for another user, you can now shut down the computer and give the computer back to the end user. You need to reset password permissions on the newly created computer account object in Active Directory. |
After the summary screen appears, the user exits the Client Installation Wizard and proceeds to the automated installation process. This is similar to the installation process of installing from a CD, but it is automated and occurs while the operating system files are stored on the RIS server. Depending on the speed of your network and the load on the RIS server, this process can be much faster than an installation from a CD-ROM drive. (This process can also be customized to present the user with additional options.)
Warning
All data is erased from your hard disk drive when you install a new operating system.