Documentation for recent versions (Linutop OS V4) is available on http://doc.linutop.com


Tutorials/Install and remove applications

From LinutopWiki

Note that the programs installed or removed are not kept after a reboot, unless you switch to the persistent mode.

Contents

A word about applications

The Linutop OS is based on Ubuntu (itself based on Debian...). The way you install applications is really different from the Windows or Mac philosophy where you either buy a product in a shop or download something on a website. All applications available for install are shipped as packages on a dedicated online space named repository: basically a package is a ready to install form of an application or of a library.

To access to those packages you can either use Synaptic, a graphical package manager, or apt-get which is a command line tool.

Synaptic

Synaptic is available in the System submenu of the Applications menu.

Synaptic default view
Enlarge
Synaptic default view

The default view of Synaptic is shown in the screenshot on the left. Here is a quick description:

  • the toobar enables you to perform various actions such as reloading the packages list, updating a package, apply changes, search for packages...
  • the left sidebar enables you to browse packages following various criterais such as categories, state (installed or not), origin...
  • the upper part of the main frame shows you the packages with a short description.
  • the frame which shows "No package selected" is used to show the full package description when you click on a package in the upper part.


Search and install packages

Search dialog
Enlarge
Search dialog

To search for a particular package, just click the Search button on the toolbar. You will be shown the screenshoted dialog where you will be able to enter some keywords.


Package description
Enlarge
Package description

Once validated you will be shown the results in the upper part of the window. Clicking on a package will as usual display the description, as shown on this screenshot.


Dependencies dialog
Enlarge
Dependencies dialog

To install a package, right click on it in the upper part of the window and click on Mark for Installation. If some additionnal packages need to be installed to make the package you selected work, you will be shown the screenshoted dialog.


Summary dialog
Enlarge
Summary dialog

Once you have selected all the packages you wish to install, click the Apply button on the toolbar. You will be shown the dialog which screenshoted on the left: this dialog is a summary of all the changes that are going to be performed. If you are still fine, with those changes, click the Apply button of the dialog.


Download dialog
Enlarge
Download dialog

After that, a dialog notifying you that the packages are being downloaded will pop up and Synaptic will install the packages you selected. You are done !


The apt-get tool

Here are some basic command to manage packages:

sudo apt-get install programm
installs a package and its dependencies
apt-cache search key words
search the corresponding packages

Hints

Be careful when you add programs. When you install a program with apt or synaptic, dependencies will also be installed. The dependencies are other programs, needed to run the one you've chosen to install. The Linutop is not prepared to receive lots of package installations, so it might not be a good idea to install programs which pull in a lot of dependencies.