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How do I get to the Universe Repository in supported versions of Ubuntu?

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Do you want to enable the universe and multiverse repositories in Ubuntu? – Mitch♦ Jun 9 '12 at 16:57
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If you want in one command and not use Software source ticking then in terminal put:

sudo add-apt-repository universe

On older versions of Ubuntu, you might have to use a full source line:

sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) universe"

To enable all Ubuntu software (main universe restricted multiverse) repositories use

sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) main universe restricted multiverse"

you can add also partner repository with different link (see difference is ubuntu to canonical)

sudo add-apt-repository "deb http://archive.canonical.com/ubuntu $(lsb_release -sc) partner"

Then update the package list:

sudo apt-get update

p.s.

$(lsb_release -sc) checks your Ubuntu version and puts its name in the source link. Since 12.04 is called precise, you can test in a terminal that lsb_release -sc gives precise. That adds the precise name of your Ubuntu release in Software sources. Wrong word and nothing will work.

For all differences in repositories read https://help.ubuntu.com/community/Repositories/Ubuntu

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Just a note that you may have to run sudo apt-get update before you can install the package you wanted. – ty01 Nov 21 '13 at 19:17
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First, open software center. Click on 'edit' and then 'software sources' to open the software sources window. Once that is open, check the box that says, "Community-maintained free and open-source software (universe)."

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Now, all the universe packages should show up in software center just like all the other ones.

More information:

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In my case ( on Ubuntu 16.04 LTS) This option was already checked. So i have just unchecked it and then checked it again. Click on "revert" and then software cache will update. And then i was able to install stable chrome using ubuntu software installer with stable debian page. Thanks @user69469 :)) Strang!! isn't it? – Yashrajsinh Jadeja May 29 '17 at 16:01
up vote 21 down vote

Command Line Way of enabling Ubuntu software Repositories For 12.10 and above:

To enable main repository,

sudo add-apt-repository main

To enable universe repository,

sudo add-apt-repository universe

To enable multiverse repository,

sudo add-apt-repository multiverse

To enable restricted repository,

sudo add-apt-repository restricted

NOTE:

After enabling the repositories, don't forget to update it.Run the below command to update the repositories,

sudo apt-get update
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what's the difference between your answer and kangaroo's answer, yours seems shorter, and simpler. – speedox Jun 19 '15 at 1:31
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Because my answer won't work for the versions below 12.10 – Avinash Raj Jun 19 '15 at 5:02
    
Is there also a way to check them first? So you only enable them when they aren't enabled already... For scripting purposes. – user2304170 Apr 30 '16 at 11:53
up vote 14 down vote

Open dash and type Software sources

type <code>software sources</code> in Dash

then open software sources and click on the the universe repository .

select "Community maintained Open Source Software (universe)"

Close and reload cache

reload cache

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