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Community Member

How to upgrade Router IOS Image using TFTP server ?

Hello All,

I am having Cisco 1841 Router with 12.4 (11) IOS version. I just now inserted one HWIC-1T WAN port Card.

This card supports if IOS version is 12.4 (23) or above.

Can anyone tell me how to upgrade IOS Image using TFTP Server ???

Is is necessery to connected to internet while upgradeing IOS Image using TFTP ???

3 REPLIES
Cisco Employee

Re: How to upgrade Router IOS Image using TFTP server ?

Here is the IOS software upgrade procedure for your reference:

http://www.cisco.com/en/US/products/hw/routers/ps259/products_tech_note09186a00801fc986.shtml

Hope that helps.

Community Member

Re: How to upgrade Router IOS Image using TFTP server ?

Hi,

Step1 : Download 3CDaemon TFTP server application from Google or any other way.

Step 2 : install the TFTP server to your local system.

Step 3 :Need to check the connectivity from router to TFTP ( ping TFTP ip ) if successful goto step 4:

Step 4 : Download new IOS File from cisco . uploaded it to TFTP Root Directory. Need to check MD5 verification for the new IOS image & Old IOS image should be same.

Step 5 : Need to check the flash free memory space. if enough free have it go ahead next step

Step 6 : Before upgrading the new IOS image you have to takeout the backup current IOS image using TFTP

Step 7 : After done above step 6 , You have to delete the Existing IOS from router . Donot reboot the router

Step 8 : upgrade the new IOS using TFTP server once done have to check the flash whether its done or not

Step 9 : once done above step 8 . Need to check the MD5 verification . You have to set boot image using command

Step 10 : Aterf that you have to check the flash directory .

Step 11: WR MEM

Step 12 : reboot;

Community Member

Re: How to upgrade Router IOS Image using TFTP server ?

BACKUP REQUIRED:
======================

copy flash:(Old IOS Image) tftp:


=======================================
Step : 2
=======================================
Delete IOS :
-----------------------

Delete flash:(Old IOS Image)

=======================================
Step 3 :
=======================================
Upgrade IOS :
-----------------
copy  tftp: flash:
tftp IP :XXX.XXX.XXX.XXX

Sourcename :(New IOS image file name)--Stored in TFTP Root directory.
Designation name :
enter

=======================================
Step 4 :
=======================================
To Verify the MD5 :
--------------------------
verify /md5 flash: (New IOS image file name)

compare the MD5 version using winMd5Sum if both are same then ok
=======================================
Step 5 :Set Boot path
=======================================
configure terminal
boot system flash: (New IOS image file name)

end

wr mem

show boot
show version
show flash

reload

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