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Beginner

IOS downgrade issue

Hi,

Please explain me while I try to downgrade ios ver "c880data-universalk9-mz.151-4.M4.bin"  to "c880data-universalk9-mz.150-1.M.bin" giving error msg wrong ios image and going to rommon mode. is that possible to downgrade cisco 887 router?

Everyone's tags (2)
8 REPLIES 8
Beginner

IOS downgrade issue

any idea?

Hall of Fame Cisco Employee

IOS downgrade issue

Mohamed,

I cannot say this with 100% certainty but usually, Cisco devices allow to downgrade their IOS. Please post the complete transcript of the failed boot attempt. Also add the output of the dir flash: command from the ROMMON. Thanks!

Best regards,

Peter

Hall of Fame Community Legend

Re: IOS downgrade issue

Post the entire boot up sequence. The IOS you want to run could be corrupted.

Sent from Cisco Technical Support iPad App

Beginner

Re: IOS downgrade issue

I have also the same issue.

Here the outputs of 887VA

rommon 10 > dir flash:

Directory of flash:

2      28518884  -rw-     c880data-universalk9-mz.150-1.M7.bin

rommon 11 > boot flash:c880data-universalk9-mz.150-1.M7.bin

program load complete, entry point: 0x80020000, size: 0x1b32844

Self decompressing the image : ###############################################################################################################################

Wrong IOS image for the router

System Bootstrap, Version 12.4(22r)YB5, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2009 by cisco Systems, Inc.

C880 platform with 262144 Kbytes of main memory

Readonly ROMMON initialized

program load complete, entry point: 0x80020000, size: 0x1b32844

Self decompressing the image : ############################################################################################################################################################################################################################################################# [OK]

Wrong IOS image for the router

System Bootstrap, Version 12.4(22r)YB5, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2009 by cisco Systems, Inc.

C880 platform with 262144 Kbytes of main memory

Readonly ROMMON initialized

program load complete, entry point: 0x80020000, size: 0x1b32844

Self decompressing the image : ############################################################################################################################################################################################################################################################# [OK]

Wrong IOS image for the router

System Bootstrap, Version 12.4(22r)YB5, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2009 by cisco Systems, Inc.

C880 platform with 262144 Kbytes of main memory

Readonly ROMMON initialized

program load complete, entry point: 0x80020000, size: 0x1b32844

Self decompressing the image : ############################################################################################################################################################################################################################################################# [OK]

Wrong IOS image for the router

System Bootstrap, Version 12.4(22r)YB5, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2009 by cisco Systems, Inc.

C880 platform with 262144 Kbytes of main memory

Readonly ROMMON initialized

rommon 1 >

Hall of Fame Community Legend

IOS downgrade issue

I know why you're getting the "Wrong IOS image for the router".

887VA does NOT support IOS version 15.0(1).  The lowest IOS you can use for a 887VA is 15.1(3)T or 15.1(4)M.

Beginner

IOS downgrade issue

Thank you so much Leolaohoo.

i have copied from tftp c880data-universalk9-mz.151-2.T1

It works now . Thanks again.

Hall of Fame Community Legend

IOS downgrade issue

Can you please mark this thread as "Answered"?

Beginner

IOS downgrade issue

It's not my thread, unfortunately i cant mark. But i have voted

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