Cisco Gigabit Ethernet Switch Module for HP BladeSystem p-Class Command Reference Guide

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APPENDIX

CGESM Switch Bootloader Commands

This appendix describes the bootloader commands on the switch.

During normal bootloader operation, you are not presented with the bootloader command-line prompt.

You gain access to the bootloader command line if the switch is set to manually boot, if an error occurs

during power-on self test (POST) DRAM testing, or if an error occurs while loading the operating system

(a corrupted Cisco IOS image). You can also access the bootloader if you have lost or forgotten the

switch password.

Note The default switch configuration allows an end user with physical access to the switch to recover from

a lost password by interrupting the boot process while the switch is powering up and then entering a new

password. The password recovery disable feature allows the system administrator to protect access to

the switch password by disabling part of this functionality and allowing the user to interrupt the boot

process only by agreeing to set the system back to the default configuration. With password recovery

disabled, the user can still interrupt the boot process and change the password, but the configuration file

(config.text) and the VLAN database file (vlan.dat) are deleted. For more information, see the Gigabit

Ethernet Switch Module for HP BladeSystem p-Class Software Configuration Guidesoftware

configuration guide for this release.

You can access the bootloader through a switch console connection at 9600 bps.

The bootloader performs low-level CPU initialization, performs POST, and loads a default operating

system image into memory.