Appendix; Cisco Catalyst Blade Switch 3030 Boot Loader Commands - Cisco Catalyst 3030 Command Reference Manual

Cisco Catalyst Blade Switch 3030
Boot Loader Commands
This appendix describes the boot loader commands on the switch.
During normal boot loader operation, you are not presented with the boot loader command-line prompt.
You gain access to the boot loader 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 boot loader 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 Cisco
Catalyst Blade Switch 3030 Software Configuration Guide for this release.
You can access the boot loader through a switch console connection at 9600 bps. The Cisco Catalyst
Blade Switch 3030 boot loader uses break-key detection to stop the automatic boot sequence for the
recovery purpose. For instructions on how to use the break key to enter the boot loader mode, see the
software configuration guide for this release.
The break-key character is different for each operating system.
Note
On a SUN work station running UNIX, Ctrl-C is the break key.
On a PC running Hyperterminal on Windows XP or 2000, Ctrl-Break is the break key.
Cisco TAC has tabulated break keys for most common operating systems and an alternative break key
sequence for those terminal emulators that do not support the break keys. See
http://www.cisco.com/warp/public/701/61.html#how-to
The boot loader performs low-level CPU initialization, performs POST, and loads a default operating
system image into memory.
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A P P E N D I X
for that list.
Cisco Catalyst Blade Switch 3030 Command Reference
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