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Upgrading IOS major revision on an older 2811 router

Hi,

After buying a new VWIC2 card, I've found out I need to update my IOS for it to be recognized.  My current "sh ver":

==========8<---------------------------------

Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.3(11)T3, RELEASE SOFTWARE (fc4)

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

Copyright (c) 1986-2005 by Cisco Systems, Inc.

Compiled Wed 26-Jan-05 02:49 by pwade

ROM: System Bootstrap, Version 12.3(8r)T7, RELEASE SOFTWARE (fc1)

ROM: Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.3(8)T5, RELEASE SOFTWARE (fc2)

pl5-voice-gw uptime is 1 hour, 3 minutes

System returned to ROM by power-on

System restarted at 09:12:07 CST Fri Aug 6 2010

System image file is "flash:c2800nm-spservicesk9-mz.123-11.T3.bin"

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
If you require further assistance please contact us by sending email to
Cisco 2811 (revision 53.51) with 251904K/10240K bytes of memory.
Processor board ID FHK0848F0N7
2 FastEthernet interfaces
18 Serial interfaces
2 Channelized T1/PRI ports
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62592K bytes of ATA CompactFlash (Read/Write)
Configuration register is 0x2102
=============8<----------------------------
Since 12.3 is not supported anymore, I need to switch to a 12.4 image.  What I'm looking at is c2800nm-spservicesk9-mz.12.4-24.T3.  Is there anything fancy to upgrading a major revision like this, beyond normal caution of a standard upgrade, or will this completely change items so that my current config will need to be reworked?
Thanks...

1 Accepted Solution

Accepted Solutions

Jerry Ye
Cisco Employee
Cisco Employee

No you should be fine. Save your original config and image in TFTP as backup.

Regards,

jerry

View solution in original post

2 Replies 2

Jerry Ye
Cisco Employee
Cisco Employee

No you should be fine. Save your original config and image in TFTP as backup.

Regards,

jerry

Great, thanks!

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