Upgrade a System Ubuntu Linux

Before you upgrade a system, it is a good idea to back up all user files on the system. The following procedure assumes that you have a desktop system that is connected to the Internet.

Follow these steps to upgrade a system ubuntu :

1. Open the Update Manager window by selecting Main menu: System -> Administration -> Update Manager.
2. Regardless of whether the window says, you can install updates or not, click Check. This step ensures the software package database is up-to-date.
3. If the window displays You can install updates, click Install Updates. This step ensures all software packages on the system are up-to-date.
4. At this point, if a new release is available, the window displays the message New distribution release 'X.XX' is available. Click Upgrade.
5. The utility displays the Release Notes window. Read the release notes and then click Upgrade.
6. The utility downloads the upgrade tool and updates some files.
7. You are asked if you want to start the upgrade. Click Start Upgrade.
8. When the upgrade is complete, reboot the system.