Category Archives: Image Upgrade

Upgrading Cisco IOS Image

STEP 1
Verify the Cisco upgrade path.
https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-software-releases-12-4-mainline/prod_white_paper0900aecd805079fb.html

STEP 2
Download the latest IOS image for your cisco website
Go to cisco.com -> IOS Software -> Select your Siwtch (for example: Cisco Catalyst Switch 3750G-24T) -> Click on “Download IP BASE” -> Select the latest version that you want to download (for example: 12-2.55.SE1).

While you are on this download page, copy/paste the MD5 given to your system. After we download the IOS image and move it to the switch, we’ll verify the MD5 checksum before installing the image.

STEP 3
Copy the image file from your laptop to the switch using TFTP Server.
# copy tftp flash:

Step 4
Verify and load the boot.

#show boot

#conf t
#boot system switch all flash:c3750-ipbasek9-mz-122-55.SE1.bin
#exit

STEP 4
Save and reboot

#wr mem
#reload

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