$ cat sources.list
# deb cdrom:[Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)]/ oneiric main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://softlibre.unizar.es/ubuntu/archive/ xenial main restricted
deb-src http://softlibre.unizar.es/ubuntu/archive/ xenial main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://softlibre.unizar.es/ubuntu/archive/ xenial-updates main restricted
deb-src http://softlibre.unizar.es/ubuntu/archive/ xenial-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://softlibre.unizar.es/ubuntu/archive/ xenial universe
deb-src http://softlibre.unizar.es/ubuntu/archive/ xenial universe
deb http://softlibre.unizar.es/ubuntu/archive/ xenial-updates universe
deb-src http://softlibre.unizar.es/ubuntu/archive/ xenial-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://softlibre.unizar.es/ubuntu/archive/ xenial multiverse
deb-src http://softlibre.unizar.es/ubuntu/archive/ xenial multiverse
deb http://softlibre.unizar.es/ubuntu/archive/ xenial-updates multiverse
deb-src http://softlibre.unizar.es/ubuntu/archive/ xenial-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://softlibre.unizar.es/ubuntu/archive/ xenial-backports main restricted universe multiverse
deb-src http://softlibre.unizar.es/ubuntu/archive/ xenial-backports main restricted universe multiverse
deb http://softlibre.unizar.es/ubuntu/archive/ xenial-security main restricted
deb-src http://softlibre.unizar.es/ubuntu/archive/ xenial-security main restricted
deb http://softlibre.unizar.es/ubuntu/archive/ xenial-security universe
deb-src http://softlibre.unizar.es/ubuntu/archive/ xenial-security universe
deb http://softlibre.unizar.es/ubuntu/archive/ xenial-security multiverse
deb-src http://softlibre.unizar.es/ubuntu/archive/ xenial-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 oneiric partner
# deb-src http://archive.canonical.com/ubuntu oneiric partner
## Virtual Box de Oracle
# deb http://download.virtualbox.org/virtualbox/debian xenial contrib # disabled on upgrade to xenial
## actualización de R de un mirror en concreto (berkeley)
## versión de ubuntu: trusty
## Fetch the secure APT key with
## gpg --keyserver keyserver.ubuntu.com --recv-key E084DAB9
## or
## gpg --hkp://keyserver keyserver.ubuntu.com:80 --recv-key E084DAB9.
##
## Feed it to apt-key with
## gpg -a --export E084DAB9 | sudo apt-key add -
##
## Update your sources and upgrade your installation with
## sudo apt-get update && sudo apt-get upgrade.
# deb http://cran.cnr.berkeley.edu/bin/linux/ubuntu/ trusty/ # disabled on upgrade to xenial