Technical data

3-36 Fabric OS Administrator’s Guide

Publication Number: 53-0000518-09

Setting the Boot PROM Password

The recovery string must be between 8 and 40 alphanumeric characters. A random string that is 15

characters or longer is recommended for higher security. The firmware prompts for this password

only once. It is not necessary to remember the recovery string because it is displayed the next time

you enter the command shell.

The following prompt displays:

6. Enter the boot PROM password; then reenter it when prompted. The password must be eight

alphanumeric characters (any additional characters are not recorded). Record this password for

future use.

The new password is automatically saved (the saveEnv command is not required).

7. Reboot the switch.

SilkWorm 12000, 24000, and 48000

The boot PROM and recovery passwords must be set for each CP blade on SilkWorm 12000, 24000,

and 48000 directors as follows:

1. Connect to the serial port interface on the standby CP blade, as described in “To connect through

the serial port” on page 2-2.

2. Connect to the active CP blade by serial or telnet and enter the haDisable command to prevent

failover during the remaining steps.

3. SilkWorm 12000: Reboot the standby CP blade by pressing the yellow ejector buttons at top and

bottom of the CP blade, and then press both ejector handles back towards the switch to lock the

blade back into the slot.

SilkWorm 24000 and 48000: Reboot the standby CP blade by sliding the On/Off switch on the

ejector handle of the standby CP blade to Off, and then back to On.

4. Press ESC within four seconds after the message “Press escape within 4 seconds...” displays.

The following options are available:

5. Enter 2.

If no password was previously set, the following message displays:

New password:

Option Description

1 Start system. Continues the system boot process.

2 Recovery password. Lets you set the recovery string and the boot PROM password.

3 Enter command shell. Provides access to boot parameters.

Recovery password is NOT set. Please set it now.