3

CHANGING THE BOOT SOURCE

 

This chapter describes how to change the primary boot source on a bridge/router or

 

tunnel switch.

 

The Enterprise OS software boot files for the main processor module are factory

 

shipped with a:/primary/boot.29k as the default primary boot source for NETBuilder

 

bridge/routers. If you have installed the Enterprise OS software flash memory card

 

into drive A, and you want to keep the default boot source, go to Chapter 4.

 

If you want to adjust system configuration settings, see the SysconF appendix in

 

Reference for Enterprise OS Software for instructions.

 

3Com recommends that you initially use the ReBoot command to boot the

 

bridge/router or tunnel switch. If this command fails, use the BT command.

 

 

Using the Boot

The Boot Monitor utility Boot (BT) command allows you to reboot or to override the

Command

default boot path. The BT command is useful if the boot path has a typing error or

 

if you have a malfunctioning drive. If you enter a new boot path, the Primary Boot

 

Source parameter is updated to reflect the new path.

 

To reboot the NETBuilder II bridge/router (or tunnel switch) using the Boot Monitor

 

utility Boot command, follow these steps:

1Reset the system in one of two ways. Either press the two outer buttons on the LCD control panel on the front of the NETBuilder chassis, or press the reset button on the main processor module.

LCD control panel buttons on front panel

 

of a NETBuilder II bridge/router

Main processor module

Reset

Reset

PACKET POWER/

FORWARD FAULT

RESET ATTENTION

STATUS

1 2 3 4

Reset button

Attention

Reset

Push both reset buttons simultaneously

The console displays the following startup message:

Do you want to enter the boot monitor? (y/n)

Entering Y within five seconds enters the boot monitor. If you enter N or enter nothing, the NETBuilder II system begins booting the software.

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3Com 11.3 manual Changing the Boot Source, Using the Boot, Command