I’m sorry, but I got lost in the process. I’ll try to sum up: You’ve got an installation media for ubuntu 24.04.2 and try to install on a computer.
To me it’s not clear if you already manged to install ubuntu 24.04.2. What difficulties are you on at the moment?
Please provide more info about the system you are trying to install to?
There is a Tutorial on installing ubuntu describing the process in detail.