Please find the below steps & Link, hope it would helps you:-
Recovering the Admin Account Password in a Standalone Configuration Before You Begin 1 Physically connect the console port on the fabric interconnect to a computer terminal or console server 2 Obtain the following information: • The firmware kernel version on the fabric interconnect • The firmware system version Procedure Step 1 Connect to the console port.
Step 2 Power cycle the fabric interconnect:
a) Turn off the power to the fabric interconnect. b) Turn on the power to the fabric interconnect.
Step 3 In the console, press one of the following key combinations as it boots to get the loader prompt: • Ctrl+l • Ctrl+Shift+r You may need to press the selected key combination multiple times before your screen displays the loader prompt.
Step 4 Boot the kernel firmware version on the fabric interconnect.
The only thing you’ll need is a console cable for the fabric interconnect(s) that you want to recover the passwords on. When you’ve got a connection to the console port of the FI, here are the basic steps:
Reboot the FI
Since you cannot login, you need to remove power to the FI by either removing the PSU’s or the power cords (whichever are easiest for you to reach)
Press ctrl+shift+r a few times as the interconnect boots to interrupt the boot process
<side note> In a normal boot, the FI is programmed to three specific images:
This happens automatically. If something goes wrong with the boot process, the FI may stop after, before, or during any of these three stages. Depending on where it stops, you will have varying levels of functionality.
By interrupting the boot process, you must individually load the images yourself. If you were to reboot at any stage again, the FI will default back to its programmed boot sequence.
This should leave you at the extremely useful, yet very unfriendly <loader> prompt.
The loader has a very limited command list (below):
? Print the command list
boot Boot an image
dir List the directory content
help Print the command list or
reboot Reboot the system
resetcmos Reset CMOS to factory defa
serial Serial console settings
set Set network configuration
show Show loader configuration
First, we need to know what kickstart we can invoke via the “boot” command. To get that, type the following:
You will see output similar to the following:
The kickstart is in bold above. To boot off of this image, I would type:
This will load kickstart and stop at the boot prompt. Form here type:
switch(boot)# config terminal
Enter configuration commands, one per line. End with CNTL/Z.
switch(boot)(config)# admin-password mypassword (where mypassword is the password you want to use)
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