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2 system-defined environment variables, System-defined environment variables – Compaq AlphaPC 164LX User Manual

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7–20

Alpha SRM Console Firmware

Environment Variables for Alpha SRM Console Commands

7.3.1.2 System-Defined Environment Variables

The following table shows common Alpha SRM Console system-defined
environment variables and their descriptions. For a complete list, enter

show *

at

the Alpha SRM Console prompt.

System-Defined
Environment Variable

Description

console

When used with the

set

command, this variable modifies

the console output to either the serial port or the graphics
controller.

control_scsi_term

This variable is unused in the motherboard system.

ewa0_mode

This variable determines if the AUI (ThinWire) or the
twisted-pair Ethernet ports will be enabled. AUI is the
default. (Autosensing is not supported.)

os_type

When used with the

set

or

show

command, this variable

modifies or displays the specified firmware that will be
loaded on the next power cycle. Specify the value

osf

or

UNIX

to select the Alpha SRM Console.

pci_parity

This variable controls PCI parity checking. The possible
values are:

on

= Parity checking is enabled.

off

= Parity checking is disabled; this is the

default.

sniff

= Parity checking is enabled or disabled

depending on the PCI device.

oem_string

When used with the

set

or

show

command, this variable

modifies or displays a text string that identifies the product
name in the Alpha SRM Console banner.