I installed Ubuntu 9.04 on my HP Probook. It's processor is Intel Core i3 and RAM is 8GB. I am not able to create a LAN connection. How can I connect it from my LAN connection.
Ubuntu 9.04 was released in April, 2009. As a normal release, it was supported until October, 2010. These are the current supported releases:
Ubuntu 12.10 is the newest release, so it has better hardware support than Ubuntu 12.04, but it is supported only until the end of April in 2014. I recommend you to choose Ubuntu 12.10.