WS-C4500X-16 is in rommon mode and unable to recover itc

Sri v · ‎12-24-2013

Hi All,

I have a new cisco device with the model of WS-C4500X-16, when i power on it displays the below error and goes to rommon mode.

****************************************************************

* *

* Rom Monitor NVRAM configuration is being initialized to *

* default values. This may be because it was never initialized.*

* *

****************************************************************

Writing to Primary Region failed

Writing to Backup Region failed

Rommon (G) Signature verification PASSED

flash0:/codesign/rm1.dat open failure

Rommon (P) Signature verification PASSED

flash0:/codesign/rm2.dat open failure

****************************************************************

* *

* Rom Monitor NVRAM configuration is being initialized to *

* default values. This may be because it was never initialized.*

* *

****************************************************************

Writing to Primary Region failed

Writing to Backup Region failed

FPGA (P) Signature verification PASSED

flash0:/codesign/fpga.dat open failure

************************************************************

* *

* Welcome to Rom Monitor for WS-C4500X-16 System. *

* *

************************************************************

Rom Monitor (P) Version 15.0(1r)SG6

CPU Rev: 2.2, Board Rev: 4, Board Type: 108

CPLD Mobat Rev: 2.0x4377.0xb277

Chassis: WS-C4500X-16

MAC Address : f0-f7-55-c5-31-7f

Ip Address : Not set.

Netmask : Not set.

Gateway : Not set.

TftpServer : Not set.

Non-Redundant system or peer not running IOS

System Uplinks & Linecards have been reset!!

***** The system will autoboot in 5 seconds *****

Type control-C to prevent autobooting.

. . . . .

******** The system will autoboot now ********

config-register = 0x102

Writing to Primary Region failed

Writing to Backup Region failed

Autobooting using BOOT variable specified file.....

Could not find a valid file in BOOT environment variable.

BOOT variable can be set from IOS. To find currently set

Rom Monitor variables, please type 'set' command.

For help on choosing a boot method, type 'confreg' command.

Writing to Primary Region failed

Writing to Backup Region failed

Writing to Primary Region failed

Writing to Backup Region failed

Writing to Primary Region failed

Writing to Backup Region failed

====================================

So i try to see the image in the bootflash, if i execute the dir bootflash:, It displays as below and doesn't showed the content

rommon 1 >dir bootflash:

ExtX super block invalid signature

So i thought of booting the device with usb but no pendrive gets detected .it also fails as u can see below

rommon 2 >dir usb0:

No USB storage device detected!

Error[3]: Failed to open directory!

Can anyone suggest me what i can do further

Leo Laohoo · ‎12-24-2013

RMA the appliance as "Dead On Arrival".

Sri v · ‎12-24-2013

Thanks for the reply...

Is there anything that we can troubleshoot ?

Leo Laohoo · ‎12-24-2013

Is there anything that we can troubleshoot ?

The appliance is dead. It should still be covered under warranty.

Haihua Rong · ‎12-24-2013

Hello Sr,

It is possible that we may a faulty appliance nevertheless try the next action plan:

1- Change the config register to 0x2102
--Check the settings
rommon>set

--Clear the current boot variable
rommon>unset boot

rommon>confreg 0x2102

rommon>reset

If does not fix the issue follow step 2:

2- Connect the management port to access a tftp server.

You will see a message that a physical link is established

--Issue the set interface gi1 or fa1

--rommon>set interface fa1 x.x.x.x 255.255.255.0

DG to use to get to the TFTP server

--rommon>set ip route default x.x.x.x

3- Check that the configs which have been made and test connectivity

rommon>set
rommon>ping x.x.x.x

4- Once the ping to the tftp is successful, you can issue the boot tftp to specify the image:

rommon>boot tftp://x.x.x.x/

If the switch comes up we need to copy the image onto the bootflash and change the boot variable again and wr

RMA will the last option if no luck.

Haihua

Imranghumara · ‎10-21-2020

Thanks Haihua Rong,

This is really helpful for me, my issue is resolved. Thanks again..! and keep helping to others..!

mathan_s · ‎12-18-2021

1- Change the config register to 0x2102
--Check the settings
rommon>set

--Clear the current boot variable
rommon>unset boot

rommon>confreg 0x2102

rommon>reset

this Steps got Succeed

ArunMohanan01801 · ‎10-02-2023

This Solution one , did help. Thanks a lot.