Compaq DS10 Betriebsanleitung PDF herunterladen (Seite 85)

SRM and AlphaBIOS Consoles 2-33

2.13.2 show envar

The show envar command displays the current value (or setting)

of an environment variable.

Syntax: show envar

envar

The name of the environment variable to be displayed. The

wildcard * displays all environment variables, which are:

console, kbd_hardware_type, language, ocp_text

and os_type.

Example 2–18 Setting and Showing Environment Variables

>>> show console

console graphics

>>> set console serial

>>> show console

console serial

>>> init # The system must be init’ed for

the new parameters to take effect

Example 2–19 Creating a User-Defined Environment Variable

>>> edit nvram

editing ‘nvram’

0 bytes read in

*10 set mopv3_boot 1

*exit

17 bytes written out to nvram

>>>

In Example 2–19 the nvram script is edited so that an environment variable

called “mop3_boot” is created and set to 1 on each power-up. By default, MOP

boot sends four MOP V4 requests before defaulting to MOP V3. This user-

created environment variable forces the SRM console to bypass MOP V4

requests. This speeds up MOP booting on networks with MOP V3 software.

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Compaq DS10 Betriebsanleitung Seite 85