Chapter 39
Troubleshooting
The system has been interrupted prior to initializing the flash file system. The following
commands will initialize the flash file system, and finish loading the operating system
software#
flash_init
load_helper
boot
Initialize the flash file system:
Step 7
switch: flash_init
If you had set the console port speed to anything other than 9600, it has been reset to that particular
Step 8
speed. Change the emulation software line speed to match that of the switch console port.
Load any helper files:
Step 9
switch: load_helper
Start the file transfer by using the Xmodem Protocol.
Step 10
switch: copy xmodem: flash:image_filename.bin
Step 11
After the Xmodem request appears, use the appropriate command on the terminal-emulation software to
start the transfer and to copy the software image into flash memory.
Boot the newly downloaded Cisco IOS image.
Step 12
switch:boot flash:image_filename.bin
Step 13
Use the archive download-sw privileged EXEC command to download the software image to the switch
or to the switch stack.
Use the reload privileged EXEC command to restart the switch and to verify that the new software image
Step 14
is operating properly.
Delete the flash:image_filename.bin file from the switch.
Step 15
Recovering from a Lost or Forgotten Password
The default configuration for the switch allows an end user with physical access to the switch to recover
from a lost password by interrupting the boot process during power-on and by entering a new password.
These recovery procedures require that you have physical access to the switch.
Note
On these switches, a system administrator can disable some of the functionality of this feature by
allowing an end user to reset a password only by agreeing to return to the default configuration. If you
are an end user trying to reset a password when password recovery has been disabled, a status message
shows this during the recovery process.
These sections describes how to recover a forgotten or lost switch password:
•
•
You enable or disable password recovery by using the service password-recovery global configuration
command. When you enter the service password-recovery or no service password-recovery command
on the stack master, it is propagated throughout the stack and applied to all switches in the stack.
OL-26520-01
Procedure with Password Recovery Enabled, page 39-4
Procedure with Password Recovery Disabled, page 39-6
Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
Recovering from a Lost or Forgotten Password
39-3