Default sources.list
file on 14.04:
# deb http://be.archive.ubuntu.com:80/ubuntu/ trusty main restricted
deb http://be.archive.ubuntu.com:80/ubuntu/ trusty-updates main restricted
deb http://security.ubuntu.com/ubuntu trusty-security main restricted
See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
newer versions of the distribution.
deb http://be.archive.ubuntu.com:80/ubuntu/ trusty main restricted
deb-src http://be.archive.ubuntu.com:80/ubuntu/ trusty main restricted
Major bug fix updates produced after the final release of the
distribution.
deb http://be.archive.ubuntu.com:80/ubuntu/ trusty-updates main restricted
deb-src http://be.archive.ubuntu.com:80/ubuntu/ trusty-updates main restricted
N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
team. Also, please note that software in universe WILL NOT receive any
review or updates from the Ubuntu security team.
deb http://be.archive.ubuntu.com:80/ubuntu/ trusty universe
deb-src http://be.archive.ubuntu.com:80/ubuntu/ trusty universe
deb http://be.archive.ubuntu.com:80/ubuntu/ trusty-updates universe
deb-src http://be.archive.ubuntu.com:80/ubuntu/ trusty-updates universe
N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
team, and may not be under a free licence. Please satisfy yourself as to
your rights to use the software. Also, please note that software in
multiverse WILL NOT receive any review or updates from the Ubuntu
security team.
deb http://be.archive.ubuntu.com:80/ubuntu/ trusty multiverse
deb-src http://be.archive.ubuntu.com:80/ubuntu/ trusty multiverse
deb http://be.archive.ubuntu.com:80/ubuntu/ trusty-updates multiverse
deb-src http://be.archive.ubuntu.com:80/ubuntu/ trusty-updates multiverse
N.B. software from this repository may not have been tested as
extensively as that contained in the main release, although it includes
newer versions of some applications which may provide useful features.
Also, please note that software in backports WILL NOT receive any review
or updates from the Ubuntu security team.
deb http://be.archive.ubuntu.com:80/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://be.archive.ubuntu.com:80/ubuntu/ trusty-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu trusty-security main restricted
deb-src http://security.ubuntu.com/ubuntu trusty-security main restricted
deb http://security.ubuntu.com/ubuntu trusty-security universe
deb-src http://security.ubuntu.com/ubuntu trusty-security universe
deb http://security.ubuntu.com/ubuntu trusty-security multiverse
deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse
Uncomment the following two lines to add software from Canonical's
'partner' repository.
This software is not part of Ubuntu, but is offered by Canonical and the
respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu trusty partner
deb-src http://archive.canonical.com/ubuntu trusty partner
Uncomment the following two lines to add software from Ubuntu's
'extras' repository.
This software is not part of Ubuntu, but is offered by third-party
developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu trusty main
deb-src http://extras.ubuntu.com/ubuntu trusty main
The location of the file is: /etc/apt/source.list
You can edit it by issuing sudo vi /etc/apt/source.list
or sudo nano /etc/apt/source.list
(nano might be easier for you).
If you want to add those repositories mentioned, you should add these lines to the bottom of the file:
# Tor Project Repositories
deb http://deb.torproject.org/torproject.org trusty main
deb-src http://deb.torproject.org/torproject.org trusty main