How to upgrade IOS on Router

Answered Question
Nov 5th, 2010

Hi

anyone have good instruction with the minumum risk to upgrade the router IOS

PRODUCT TYPE (Model Number): Cisco 2801 

* SOFTWARE VERSION:IOS Version:12.4(4)XC7

I have this problem too.
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Correct Answer by Bert Gevers about 3 years 5 months ago
Correct Answer by Bert Gevers about 3 years 5 months ago

Hi Ozhan,

this device has 256Mb of DRAM and 64Mb flash:

<...snip...>

Cisco 2801 (revision 6.0) with 238592K/23552K bytes of memory.

<...snip...>

When performing the upgrade on a 2800, you will have downtime during the time when the device is reloading.

To reduce downtime, you may be able to use the warm upgrade feature described here:

http://www.cisco.com/en/US/docs/ios/fundamentals/configuration/guide/warm_upgrade_ps6441_TSD_Products_Configuration_Guide_Chapter.html

HTH,

Bert

Correct Answer by Bert Gevers about 3 years 5 months ago

Hi Ozhan,

for the upgrade procedures themselves, you can use the following page:

http://www.cisco.com/en/US/docs/routers/access/1800/1841/software/configuration/guide/b_image.html

HTH,

Bert

Correct Answer by Peter Paluch about 3 years 5 months ago

Hello Ozhan,

This seems to refer to your earlier post about the bus error, doesn't it?

First, make a note of your current IOS feature set (IP Base, Advanced Security, Advanced IP Services, Advanced Enterprise Services, etc.) - looking at the show version and/or on the current image name will help you identify the feature set. Second, find out how much DRAM and FLASH your router is equipped with - again, the show version is your friend here.

Then, try to locate the newest 12.4T or 12.4 IOS using the Feature Navigator at the following link:

http://tools.cisco.com/ITDIT/CFN/Dispatch?act=rlsSelect&task=search&searchby=platform

Select the 2801 as your platform and after clicking on the Continue button, set first the major release to 12.4T, then select the most recent release and then browse over available feature sets to see the hardware requirements and the features available in the particular image. For example, the 12.4(24)T3 image for 2801 in the Advanced IP Services feature set requires 192MB DRAM and 64 MB FLASH. You may also try having a look on the 12.4 track.

You may even try to look for newest versions in the 15.0M track but these IOSes need generally as much as twice the memory than their slightly older 12.4T counterparts so I don't believe the 15.0M would be usable for you right now unless you have a router having lots of DRAM.

After you select your IOS version that would meet the hardware resources you have available, I strongly recommend comparing its available features to your current IOS version using the Feature Navigator again:

http://tools.cisco.com/ITDIT/CFN/Dispatch?act=compare&task=display

If you properly enter the exact information on both your current and your newly selected IOS version into this tool, it will nicely display the different features in both images, as well as the same features.

Best regards,

Peter

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Correct Answer
Peter Paluch Fri, 11/05/2010 - 03:29

Hello Ozhan,

This seems to refer to your earlier post about the bus error, doesn't it?

First, make a note of your current IOS feature set (IP Base, Advanced Security, Advanced IP Services, Advanced Enterprise Services, etc.) - looking at the show version and/or on the current image name will help you identify the feature set. Second, find out how much DRAM and FLASH your router is equipped with - again, the show version is your friend here.

Then, try to locate the newest 12.4T or 12.4 IOS using the Feature Navigator at the following link:

http://tools.cisco.com/ITDIT/CFN/Dispatch?act=rlsSelect&task=search&searchby=platform

Select the 2801 as your platform and after clicking on the Continue button, set first the major release to 12.4T, then select the most recent release and then browse over available feature sets to see the hardware requirements and the features available in the particular image. For example, the 12.4(24)T3 image for 2801 in the Advanced IP Services feature set requires 192MB DRAM and 64 MB FLASH. You may also try having a look on the 12.4 track.

You may even try to look for newest versions in the 15.0M track but these IOSes need generally as much as twice the memory than their slightly older 12.4T counterparts so I don't believe the 15.0M would be usable for you right now unless you have a router having lots of DRAM.

After you select your IOS version that would meet the hardware resources you have available, I strongly recommend comparing its available features to your current IOS version using the Feature Navigator again:

http://tools.cisco.com/ITDIT/CFN/Dispatch?act=compare&task=display

If you properly enter the exact information on both your current and your newly selected IOS version into this tool, it will nicely display the different features in both images, as well as the same features.

Best regards,

Peter

imediacast2010 Fri, 11/05/2010 - 03:53

this is the show version result

I am new on cisco router can you check if the ram ok and I am going to follow the link below you send me now

Can I use software to upgrade the IOS and when I do upgrade is it going to be down time?

2801-IMC-LONDON#show version

Cisco IOS Software, 2801 Software (C2801-ADVENTERPRISEK9-M), Version 12.4(4)XC7, RELEASE SOFTWARE (fc1)

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

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Wed 01-Aug-07 00:56 by alnguyen

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

2801-IMC-LONDON uptime is 1 day, 6 minutes

System returned to ROM by bus error at PC 0x623A3CF8, address 0x23 at 10:43:44 UK Thu Nov 4 2010

System image file is "flash:c2801-adventerprisek9-mz.124-4.XC7.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:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to

export@cisco.com.

Cisco 2801 (revision 6.0) with 238592K/23552K bytes of memory.

Processor board ID FCZ1101747H

2 FastEthernet interfaces

4 ISDN Basic Rate interfaces

1 Virtual Private Network (VPN) Module

1 DSP, 16 Voice resources

DRAM configuration is 64 bits wide with parity disabled.

191K bytes of NVRAM.

62720K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

Correct Answer
Bert Gevers Fri, 11/05/2010 - 03:59

Hi Ozhan,

this device has 256Mb of DRAM and 64Mb flash:

<...snip...>

Cisco 2801 (revision 6.0) with 238592K/23552K bytes of memory.

<...snip...>

When performing the upgrade on a 2800, you will have downtime during the time when the device is reloading.

To reduce downtime, you may be able to use the warm upgrade feature described here:

http://www.cisco.com/en/US/docs/ios/fundamentals/configuration/guide/warm_upgrade_ps6441_TSD_Products_Configuration_Guide_Chapter.html

HTH,

Bert

imediacast2010 Fri, 11/05/2010 - 03:55

Cisco 3800 series routers, Cisco 2800 series routers, and Cisco 1800 series routers support only external compact flash memory cards. Internal flash memory is not supported. For more details, see Using CompactFlash Memory Cards.

How do I know I have compact Flash Memory?

Bert Gevers Fri, 11/05/2010 - 04:19

Hello Ozhan,

As verified above, you have 256MB of DRAM and 64Mb of flash on your device.

In regards to your query about screen-shots, you can find an example of the output expected at the following link prevously provided:

http://www.cisco.com/en/US/docs/routers/access/1800/1841/software/configuration/guide/b_image.html

As explained, if you would like to minimize downtime significantly, you can use 'reload warm file url'' instead of just reload. 

HTH,

Bert

imediacast2010 Fri, 11/05/2010 - 04:24

I have follow the link and I am trying to download IOS but tooks me to software download page

how do I find the correct IOS not sure which one I am looking for

can you help?

Correct Answer
Bert Gevers Fri, 11/05/2010 - 04:32
imediacast2010 Fri, 11/05/2010 - 04:56

I am not able to download any of them ?

  • To download this software you must have a valid Technical Support Services Agreement associated to your Cisco.com user ID.
    • If you do not have a Technical Support Services Agreement you can get one through:
      • Your Cisco Account Team if you have a direct purchase agreement with Cisco
      • Your Cisco Partner or Reseller
    • Once you have the Technical Support Services Agreement you must associate your Technical Support Services Agreement to your Cisco.com user ID with Profile Manager
Bert Gevers Fri, 11/05/2010 - 05:09

Hello Ozhan,

you will require a valid Technical Support Services Agreement associated to your Cisco.com user ID.

I would suggest to contact your Cisco account team or partner/reseller to look into the possibilities.

HTH,

Bert

imediacast2010 Fri, 11/05/2010 - 05:13

yes I do not have cisco account team

do I need to pay to download or upgrade IOS ?

Bert Gevers Fri, 11/05/2010 - 05:19

Hello Ozhan,

Your reseller/partner (possibly where you bought the device) will be able to advise on this.

HTH,

Bert

imediacast2010 Fri, 11/05/2010 - 05:22

we bought the router 3 years ago cannot remmeber who was it

it should be easy to install IOS which is only software

are there any other way ?

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Posted November 5, 2010 at 2:18 AM
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