N540X

[arthur.n@sea.samsung.com]

Good morning 

I have a cisco N540x switch, that the administrator password is corrupt or unknown

I see several password reset options online but none work.

Can you tell me how to reset my password?

Or in one case it says I need to get to rommon to reset.

That does not work either.

Arthur

arthur.n@sea.samsung.com

[Flavio Miranda]

Hi

 Do you have this command available:

conf t

system recovery

[arthur.n@sea.samsung.com]

I cannot login.

No access at all

There is a username prompt but cannot login.

The password is unknown, I need to reset it.

Thank you

Arthur

[Flavio Miranda]

Do you have any 'show run"  saved? Just to confirm?

I have found a procedure for this device but is start by having this command enable.

[paul driver]

Hello

---

arthur.n@sea.samsung.com wrote:

No access at all
There is a username prompt but cannot login.
The password is unknown, I need to reset it.

---

Never performed a recovery on that particular model of switch but please review this -

You need to power cycle the switch and attach a console cable to it , re apply the power and then break in the startup via ESC key > and to perform a password recovery

[Patryk Klaczynski]

Hi,

My client has the same problem. Neither instruction works.

New Password Recovery
https://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/ios-xr-software/217291-new-password-recovery-procedure-on-cisco.html

There is no " IOS-XR-recovery" option

Disaster Recovery Using Manual iPXE Boot
https://www.cisco.com/c/en/us/td/docs/iosxr/ncs5500/system-setup/71x/b-system-setup-cg-ncs5500-71x/b-system-setup-cg-ncs5500-71x_chapter_01001.html#concept_F52D0A35637E4583972405EA4164C229

Downloading (ncs540-mini-x-7.5.1.iso) starts, but an error occurs after the download.

iPXE> boot tftp://192.168.0.1/ncs540-mini-x-7.5.1.iso
tftp://192.168.0.1/ncs540-mini-x-7.5.1.iso... 99%

Memory required for image[ncs540-mini-x-7.5.1.iso]: 1786578944, available: 1861222400
image_select failed=>-771784833
Please make sure bzImage is compiled with EFI_STUB=y
Could not boot: Exec format error (http://ipxe.org/2e008081)
iPXE>

Tried commands: boot, chain, imgexec, imgload, ,module
with options: --autofree and --replace

Could you help with this?