switching from ubuntu 11.10 to ubuntu 12.04 lts
 

Hi guys,
I am currently using Ubuntu 11.10 for around 6 months. Now I want to upgrade it to the latest version 12.04 LTS. Now its pretty simple doing it online by the upgrade manager. But the problem is my net is too slow .
So can I upgrade the OS simply from the .iso file of ubuntu 12.04(apparently i have one in my computer)?????
If yes plz tell me how..........
Thank you in advance.

You would have to reinstall the system if using the .iso , you also will need to burn a cd or use USB stick.

Regards