This is a Clilstore unit. You can link all words to dictionaries.

UNIT 1 COMPUTERS AND OPERATING SYSTEMS - ACTIVITY 2. INSTALLING APPLICATIONS

 

Instalación de aplicaciones




2. OPERATIVES SYSTEMS

2.1 INSTALLING PROGRAMS IN LLIUREX





HOW TO INSTALL A PROGRAM IN WINDOWS


Download the program from the manufacturer web site and run it to install it in Windows. The installation wizard will pop upaparecera and will guide you through the installation process. Usually there are few problems.

HOW TO INSTALL A PROGRAM IN LLIUREX



In Lliurex it is also possible to download software straight from a web site. However the installation procedure that follows, is, to say the least, hazardous and uncertain. Installation wizards are rare in Linux, and the installation, usually entails the automatic download of packets and libraries needed by the program, which often are not compatible with the current system set up. A lot of things might fail:

For all these reasons Lliurex maintains an applications repository

APPLICATIONS REPOSITORIES IN UBUNTU/LLIUREX


An applications repository is an Internet site where the user can download programs approved by the company who released the distribution. In this context, approved means that if the user has an updated Linux system, the repository programs will be able to be be installed and no problem is supposed to come up (aparecer)

This very concept is also used in Android Play Store and Apple App Store. Both are repositories where there's only software tested and considered harmlessinofensivo by Google and Apple.

Each Linux distribution has its own official repository maintained by a company or entity. This ensuresasegura that, as long as the system is correctly updated, there will be no problem installing programs from the official repository. In addition, we will be warned about any new updates for the software already installed.

In Android and Apple there is only a repository (the official one). In Linux by default, there will be an official repository in every distribution. But it will be possible to add or delete other repositories. For example, to install Spotify, it's necessary to add the Spotify maintained (repository.spotify.com) .

ACTIVITY 1. LISTING THE AVAILABLE REPOSITORIES.


In this activity you are going to list the active repositories in your virtual machine

 

 

ACTIVITY 2. INSTALL BLUEGRIFFON USING SYNAPTIC


In LLiurex the applications are made out of packets. To install a program is to install the packets it is made out of . There are several commands to install/uninstall packets from a terminal, but to make it in the windows environment we should use the program SYNAPTIC.





Let's install a web pages editor called Bluegriffon. First to locate the Bluegriffon packets write "Bluegrif " in the text box filtro rápido






apt-cache policy bluegriffon

 

ACTIVITY 3. INSTALLING SPOTIFY AND MANAGING REPOSITORIES WITH THE TOOL ORIGENES DE SOFTWARE


in Windows, the repository concept doesn't exist. You can download and install any program just running it. In Android there is an official repository (Play Store) constraining the app's you can install in your Android device. However you can install programs from other sources changing the default set up. Apple holds the more restrictive politic, only allowing in their products applications downloaded from their official repository (App store)

Linux/Ubuntu/LLiurex, uses an intermediate solution.


In this activity we are going to install Spotify, using the Spotify repository. The first step is to install the Spotify public key. Spotify uses its private key to sign the files downloaded from its repository. Installing spotify public key in your computer, allows your to check the signing and verify that the files you have downloaded really come from the Spotify repository. Open a terminal and execute the following instruction (copy it from this document and then paste it in the terminal window)

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys BBEBDCB318AD50EC6865090613B00F1FD2C19886 0DF731E45CE24F27EEEB1450EFDC8610341D9410



Now you must add the Spotify respository to your repository list. To add, delete or update the list of repositories, Lliurex uses the tool origenes de software.

Let's add the Ubuntu official Repository. Click in afig and write the line shown below to add

deb http://repository.spotify.com stable non-free

 



 

 
 

  ACTIVITY 4 INSTALLING PROGRAMS USING THE LLIUREX SOFTWARE CENTER


Centro de software is a Lliurex tool which allows to install applications in a very easier and friendlier way than using SINAPTYC. C.S. only can be used for programs in the repository, and has some restrictions leading to more failures in the installation processes.

We are going to install Bos wars, game. This is going to be an example of failed installation. It won't work because of dependency breaks.





 

 ACTIVITY 5 INSTALL PROGRAMS USING APT-GET

When installing a program using Sinaptic or the Software control center fails, the best alternative is to open a terminal and to install it using apt-get. This method provides better feedback about what went wrong in the installation process. Let's install kdenlive, a video editor

 

The Kdenliveicon will appear in the menu applications next time you reboot the virtual machine

 

 

Now we are going to uninstall a program called avogadro using the commands. sudo apt-get remove avogadro

 

 



Make an screen capture showing this window on your desktop and upload it to Moodle. Remember that your user name must be visiblo in the right bottom corner



ACTIVITY 6. INSTALLING INDEPENDENT PACKETS USING GDEBI. INSTALLING GOOGLE CHROME


An independent packet is a packet that doesn't belong to any repository. Google chrome is an example, you won't find it in the Lliurex official repository. However it's possible to download it straight from Google and install it using the tool Gdebi-gtk. (Notice that it might be alos installed adding the Google repository to the repository list as seen before). Gdebi is a terminal program to install .deb independent packets and it's graphic interface is gdebi-gtk









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