I have purchased WS-C4900-SW-LIC= for upgrading 4900 switch from LAN base to IP base IOS.
I have not received any PAK or installable license file. Only license agreement is provided by CIsco.
While upgrading do I need to install license file on switch?
Contact the licensing team and request for an update using your PO/SO since you have not received the PAK.
Indeed we need to install the license file on the switch
First copy this license to the switch's flash memory using the copy command
and a TFTP server.
Note, while the dir bootflash: command now lists the file in the bootflash, it has
not yet been installed. The license install command must be used to install
4948# license install flash:license_name-ips
Please issue the following command and then reload the switch.
4948(config)#license boot level ipservices
As per below link for 4900 and 4500 switches does not require to install any file for upgrading the switches. Only right to use command is sufficient after upgrade. Only one need to purchase upgrade part code from Cisco, but no license file to be installed;-