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Replies

Catalyst 4506-E switch stuck in rommon mode

ahmeeIT
Level 1
Level 1

I have an old cisco catalyst LE switch 4506-E, I have been using it for long period. Now 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. *

* Copyright (c) 2008-2012 by Cisco Systems, Inc. *

* All rights reserved. *

* *

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

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?

1 Accepted Solution

Accepted Solutions

if it is the problem, i guess its time to open a TAC case in support

Please rate this and mark as solution/answer, if this resolved your issue
Good luck
KB

View solution in original post

8 Replies 8

check below guide's step 5. even this is OS upgrade document, step 5 explains about setting boot value.

https://community.cisco.com/t5/networking-knowledge-base/how-to-upgrade-cisco-4500-sup7-e-sup7l-e-rommon-to-support-vss/ta-p/3145220

Please rate this and mark as solution/answer, if this resolved your issue
Good luck
KB

I think this is different. When enter “confreg=0x2101” to change the configuration register value, it display the following:

Writing to Primary Region failed

Writing to Backup Region failed

And if I enter
rommon 1 >dir bootflash:

ExtX super block invalid signature

Output is the above.

if it is the problem, i guess its time to open a TAC case in support

Please rate this and mark as solution/answer, if this resolved your issue
Good luck
KB

balaji.bandi
Hall of Fame
Hall of Fame

Change the config register to 0x2102
rommon>set

rommon>unset boot

rommon>confreg 0x2102

rommon>reset

some reference to fix the issue.

https://community.cisco.com/t5/switching/issues-booting-4500x-switch/td-p/4567144

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/release/note/OL_24829.html#wp196197

still not working time for RMA.

BB

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ahmeeIT
Level 1
Level 1

Okay I'll try that way.
Thank you everyone

Leo Laohoo
Hall of Fame
Hall of Fame

Flash is dead.

Okay Sear;
Can I replace it or What should I do?

Do you have Flash? i suggest contacting TAC for RMA.

BB

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