How do I enable the “Universe” repository?

Question

How do I get to Universe Repository of Ubuntu software as mentioned in Ubuntu 12.04 LTS? I am installing 12.04 Ubuntu. Please help.

Answer 1

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)."

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

More information:

• How do I enable universe from the command line?

Answer 2

Open dash and type Software sources

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

Close and reload cache

Answer 3

If you want in one command and not use Software source ticking then in terminal put

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"

p.s.

$(lsb_release -sc) makes checking your Ubuntu version and putting its name in link. Since 12.04 is called precise then you can test in terminal lsb_release -sc gives word precise Thats makes added repository link precise name of your ubuntu Release in Software sources. Wrong word and noting will work.

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