Nexus9k wipe configuration

[ConceptsL5]

I have a nexus9k-C9327PX-E switch. I do not know the password and thus I would like to wipe this switch. I have tried what is suggested here: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/password_recovery/b_nx_os_pwr/nx_os_pw.html

I have tried each key combination suggested there. I am connected to the nexus switch via a com port. I have tried to use both putty and MobaXterm as the CLI/emulator application

[balaji.bandi · Accepted solution]

You have not mentioned what steps not worked here ? is the keys not worked ? (i follow all the time below proceedure works charm)

Turn off the device by pulling the power - prepare your console and PC ready with putty :

During the boot process, you need to escape with Ctrl+C

loader >

follow below guide :

Power Cycling the Device to Recover the Administrator Password

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/6-x/troubleshooting/guide/b_Cisco_Nexus_9000_Series_NX-OS_Troubleshooting_Guide/b_Cisco_Standalone_Series_NX-OS_Troubleshooting_Guide_chapter_01.html#task_1916B1CD345A48E285304868...

still issue post the complete boot process from console.

[ConceptsL5]

When I hit Ctrl+C when the switch is rebooted it boots as normal it does not take me to the switch(boot)# prompt

[Kirk J]

Sounds like the boot interrupt command/keystroke is not getting submitted.

Are you using US keyboard mapping?

That same article mentions also trying Ctrl-] (right square bracket or setting telnet escape key sequence for it.

Kirk..

[ConceptsL5]

Yes I am using US keyboard mapping. I have tried Ctrl-], Ctrl+C, Ctrl+ L and Ctrl+B.

[balaji.bandi]

what other methods did you try?

you need to escape with Ctrl+C or different keyboard need to use different keyboard strokes.

[ConceptsL5]

How are you preparing putty on your PC?

[balaji.bandi · Accepted solution]

How are you preparing putty on your PC?

type goole. putty and download - exe file portable.

run putty - use serial

[ConceptsL5]

Thank you for your help. My flow control setting was not set to none. Making that change fixed it!

[MHM Cisco World]

""If you are using a non-U.S. keymap, the key sequence that you need to press to generate the break
sequence may not work. In this case, we recommend that you set your terminal to a U.S. keymap.
You can enter Ctrl-C instead of Ctrl-] (right square bracket) due to keyboard mapping.