Changing Startup And Boot Defaults; Startup And Boot Environment Variables - Compaq AlphaServer 1000A Owner's Manual

Basic Operation

Changing Startup and Boot Defaults

You can change the way the system starts up or boots the operating system. For example,
you can set the system to autoboot or you can change the default boot device. To make
these kinds of changes you need to change default values for your system's environment
variables.
•
To change default values for Windows NT systems, which boot automatically, you
can prevent autoboot by selecting one of the menu options.
•
To change default values for Digital UNIX or OpenVMS Alpha systems, see "set" in
Table 4-1, "Basic SRM Console Commands."

Startup and Boot Environment Variables

The following environment variables affect the way the system starts up or boots:
•
auto_action
•
autoload
•
countdown
•
os_type
Table 4–3 lists the boot environment variables and their values, and briefly describes their
effects. Environment variables marked with an asterisk * in Table 4-3 require that you use
the init command to initialize the firmware whenever you reset that particular variable.
Example : >>>
>>>
4-20 AlphaServer 1000A Rackmount Owner's Guide
set os_type NT
init