Upgrade Cisco Switch from another Cisco Switch

How to upgrade a Cisco switch from another switch?

A Cisco switch can be upgraded from another switch by using tftp.
Make the latest switch as a tftp server and copy image from the switch.

Step 1

Connect two switches and provide IP address to access them.
Use console cable to connect the switches.

Step 2

Make latest switch as tftp server.
Switch_testing#config t
Enter configuration commands, one per line. End with CNTL/Z.
Switch_testing(config)#tftp-server flash:c2960s-universalk9-mz.150-2.SE8.bin
*Note : c2960s-universalk9-mz.150-2.SE8.bin :- System image file to be copied.

That’s it the switch is now become a tftp server.

Step 3

Copy system image from tftp-server that you just created.
Switch_testing2#copy tftp: flash:
Address or name of remote host []? <ip address of your tftp-server-switch>
Source filename []?<image name that should be copied>
Destination filename[<image name that should be copied>]?

Now the switch will copy the specified image file from the switch.

Step 4

After the copy has completed set the boot file for the switch.
Switch_testing2#conf t
Switch_testing2(config)#boot system flash:

Step 5

Reload the switch.

Switch_testing2#reload
System configuration has been modified. Save? [yes/no]: yes
Building Configuration…
[OK]
Proceed with reload? [confirm]
Switch will reload using the new image.
If you want to delete old image use the command
Switch_testing2#del flash:/

Done!