Ubuntu Oneiric, while added much improvements to its Unity desktop, also brought lot of changes that make it more confusing and difficult to use. Users who have come from previous version of Ubuntu will find that some of their favourite applications are missing and replaced with another application that is either more resource intensive or more difficult to use. New users will also be confused where they can find all their applications and system settings. In this tutorial, we provide a simple user guide to help you familiarize with Ubuntu Oneiric.
1. How to Add/Remove Applications to/from the Launcher Bar
The launcher bar comes with a set of default launchers that you may not have use for. To remove application from the launcher bar, simply right-click on its icon and uncheck “Keep in launcher”.
2. How to open an application in Unity desktop
Unlike the old Gnome desktop, there is no Applications menu at the top panel where you can click to launch the application you want. To open an application in Unity desktop, you have to search for it.
The default method:
Click on the first icon on the launcher bar (or press “Super” button) to access the Dash. Search for your application by typing its name in the search field. Select the application and Press Enter.
Alternatively, you can click on the Application icon at the bottom of the Dash (second from left) and scroll through the list of application until you found the app you want.
Alternative method 1: Install Classicmenu indicator
The ClassicMenu Indicator is a third-party appindicator that brings the classic Gnome menu back. To install:
sudo add-apt-repository ppa:diesch/testing sudo apt-get update sudo apt-get install classicmenu-indicator
Run ClassicMenu indicator from Dash. You should be able to access your applications from the system tray now.
Alternative method 2: use quick launcher app like Gnome Do or Synapse
Quick Launcher app like Gnome Do or Synapse allows you to open your application very quickly. You just have to press a hotkey (Ctrl + Space) to activate the search box and you can quickly search for the app you want.
3. How to Add QuickList to the Launcher in the Launcher Bar
Quicklists are the list of options when you right-click on an icon in the Launcher Bar. For example, when you right-click on the folder icon, you can quickly access your Home, Documents, Music and various folders that you have added to bookmarks.
Follow the instructions here to add quicklist to the launcher.
4. How to Configure the Unity Desktop
The default installation of Ubuntu Oneiric doesn’t come with any option to configure the Unity desktop. You can, however, install CompizConfig Settings Manager to access the configuration menu.
sudo apt-get install compizconfig-settings-manager
Once installed, run the app and scroll down the list till you see the Ubuntu Unity Plugin. Click on it. From here, you can configure the behaviour of the launcher, the shortcut key, the switcher and some experimental features.
If you are using an old computer that doesn’t support Compiz, most probably you are running Unity 2D instead of the usual Unity desktop. To configure Unity 2D, you have to install dconf-tools (use the following command in the terminal:)
sudo apt-get install dconf-tools
Next, in the terminal, type:
dconf-editor
Navigate to Desktop -> Unity. You can find several configuration options here.
5. How to Restore Synaptic package Manager
The useful and popular Synaptic Package Manager was removed from Ubuntu Oneiric in favour of Ubuntu Software Center. Luckily you can easily restore it by installing the Synaptic application. Install Synaptic Package Manager by the following command in the terminal:
sudo apt-get install synaptic
6. How to install .deb File Without Using Ubuntu Software Center
Ubuntu Natty and Oneiric open the Ubuntu Software Center when you double-click to install any .deb file. As USC is quite resource-intensive, the whole installation process is often very slow. A faster and quicker way is to use the gdebi package to manage your deb file. Type the following command in the terminal:
sudo apt-get install gdebi
Once installed, right-click on any deb file and select Properties. Go to the “Open With” tab and select gdebi as the default application. That’s it. Whenever you double-click to install a deb file, the gdebi package installer will open up instead of Ubuntu Software Center.
7. How to Change Login Screen Background
To change the background of the login screen (LightDM), open a terminal and type:
sudo nano /etc/lightdm/unity-greeter.conf
At the field starting with “background=…“, change the background path to your favourite wallpaper. Leave everything else untouched.
Once done, press “Ctrl + O” follow by Enter. Lastly, press “Ctrl + X” to exit.
Log out. You should see your new login background in action.
8. How to Restart Ubuntu Oneiric
If you have noticed, there is no “Restart” option at the Power menu. You can only Logout, Shut Down, Suspend or Hibernate. What if you need to Restart your PC? Fret not, the “Restart” option is integrated with the Shut Down option. Click the Shut Down option and you will be able to select between Restart or Shut Down in the popup window.
9. How to Restore Gnome Classic
If you don’t like the Unity desktop, you can switch back to the classic Gnome desktop.
sudo apt-get install gnome-session-fallback
Log out and choose “Gnome Classic” in the login screen.
Note: The Gnome Classic is running on the Gnome 3 platform, so don’t expect everything to be the same as the old Gnom