When the new version of Ubuntu (9.10) is released, thousands of people connect their computers to the Ubuntu servers to complete the upgrade. Even on a fast internet connection, downloading new versions of almost all current applications will take a long time. Coupled with everyone else trying to download from the same place at the same time, download times may push a few days. Ubuntu Tutorials posted a great article about speeding up Ubuntu downloads by selecting the closest server. Here’s how:[go to] System > Admin > Software Sources : “Download From” drop-down, select “other”. At this point you can select one from the list or “Select Best Server”.
This will test all the server and see which one has the best ping time.