Environment Variable Summary - Compaq AlphaServer 1200 User Manual

4.18 Environment Variable Summary

Environment variables pass configuration information between the console and
the operating system. Their settings determine how the system powers up, boots
the operating system, and operates. Environment variables are set or changed
with the set envar command and returned to their default values with the clear
envar command. Their values are viewed with the show envar command.
Table 4-6 lists the environment variables. Detailed descriptions follow. The
environment variables are specific to the SRM console.
Table 4-6 Environment Variable Summary
Environment
Variable Function
Specifies the console's action at power-up, a failure, or a
auto_action
reset.
boot_osflags Specifies the default operating system boot flags.
bootdef_dev Specifies the default boot device string.
com*_baud Changes the default baud rate of the COM 1 or the COM2
serial port.
console Specifies the device on which power-up output is displayed
(serial terminal or graphics monitor).
cpu_enabled Enables or disables a specific secondary CPU.
ew*0_mode Specifies the connection type of the default Ethernet
controller.
ew*0_protocols Specifies network protocols for booting over the Ethernet
controller.
kbd_hardware_ Specifies the default console keyboard type.
type
kzpsa*_host_id Specifies the default value for the KZPSA host SCSI bus
node ID.
language Specifies the console keyboard layout.
SRM Console 4-47