It is much easier and faster to upgrade from Autonomous to Light Weight via command line. Below are the steps:
- First I put the Cisco Access Points (Autonomous) on the wireless VLAN
- Once they grabbed an IP address, I telnet into the Cisco Autonomous Access Point with the default credentials, usually they are UserName: Cisco, Password: Cisco, [Enable: Cisco]
- Next I confirmed that I have a TFTP server running on my laptop and the following file c1140-rcvk9w8-tar.124-21a.JA2.tar is present in my TFTP Folder
- Next I ran the following command, “archive download-sw /overwrite /reload tftp://190.25.5.71/c1140-rcvk9w8-tar.124-21a.JA2.tar”
- I am adding a screen shot of what happened after I ran the command. Once the command is run rest of the process is automatic. After the upload AP will reboot itself and will use the new LWAP image