Can someone explain this message...

Spudage

%SYS-4-CONFIG_NEWER: Configurations from version 12.2 may not be correctly understood.

These messages never made sense to me. I have just upgraded the IOS to 12.2(3) on one of my 2500s.

This message is saying that configurations from the version of the IOS I am currently running may not be correctly understood. How does that make sense?

Before the upgrade it was running 11.2(16) and gave me the same message except with version 11.2 in the message.

Can someone please clarify?

Thanks.

larrydonte

goodday day , pls man i really need a cisco simulator pls if you can assist me with it. what i got is a demo version and i really need to write the exams before the ending of this year, i need a full versin where i can execute all commands.

thanks alot

larry (u can send it to my mail ok. then i can install it: giandorof@yahoo.com)

forbesl

Spudage wrote:

%SYS-4-CONFIG_NEWER: Configurations from version 12.2 may not be correctly understood.

Can someone please clarify?

Thanks.

It simply means that any changes you made to your router when you were running 12.2 may not be understood since you are now running 12.3.

If you made any configurations changes on 12.2 before flashing 12.3, make sure your configuration is working properly now.

Spudage

It is still version 12.2(3) though.

TheShadow

larrydonte wrote:

goodday day , pls man i really need a cisco simulator pls if you can assist me with it. what i got is a demo version and i really need to write the exams before the ending of this year, i need a full versin where i can execute all commands.

thanks alot

larry (u can send it to my mail ok. then i can install it: giandorof@yahoo.com)

Here you go... contact this link, they will send you the latest.

http://www.boson.com/Product/CIS-NS-CCNA-04.html

forbesl

Spudage wrote:

It is still version 12.2(3) though.

I stand corrected. My reply still holds true, though. You upgraded, therefore, it is letting you know that any configuration changes you made with the previous version might not be recognized with the upgrade you flashed.

Cauthon

The message is from the boot loader (ROM) of the 2500, which is probably still running a version of the IOS older than 11.2 (11.0 maybe). You should get a version message report from the 2500's boot loader prior to the error when booting via console. Or do a 'show version' and compare the IOS versions in ROM/BOOTFLASH/BOOTLDR to the version you're loading from FLASH.

In any case, the boot loader doesn't need to understand all of the config in NVRAM, as long as it can find and load the full 12.2 IOS image.


Mike

forbesl

http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_system_message_guide_chapter09186a008009e7a4.html

Cauthon

Having a description of the error message doesn't guarantee that you can understand the source of the problem.

In this case, the router has 12.2 as the IOS image in the flash. It also has a configuration from 12.2 in NVRAM. It's still giving the "I may not be able to load this newer config error", even though the config and flash IOS versions match.

Why? Because the boot loader in the 2500's ROM is running 11.0, and it checks the NVRAM config from 12.2 to find out where to look for IOS (flash, tftp, rcp). It's the boot loader that's giving the error, not the RFF IOS image.

The only way to fix the problem is to upgrade the boot loader of the 2500 (NOT update the NVRAM via copy run start from 12.2). The error(in this case) is innocuous


Mike

forbesl

Spudage,

Did you also get a message stating this?

%SYS-6-BOOT_MESSAGES : Messages above this line are from the boot loader

????

Spudage

Thanks Cauthon. As soon as I read your first message I realised that it must be the Boot Rom... which as you say is version 11.*

forbesl, I don't recall seeing that message before, but I may have just ignored it.

Now that I know that it isn't the IOS in flash printing the message, I don't mind seeing it.

Thanks.