Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

After a do-release-upgrade, I'm now running ubuntu 12.04 LTS, as indicated below

> lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 12.04 LTS
Release:        12.04
Codename:       precise

However, I find that all the entries in my /etc/apt/sources.list were commented out except for one.

QUESTION: Is it safe for me to edit these, replacing the old 'lucid' with 'precise' in what is shown below?

## unixteam source list
# deb http://debian.yorku.ca/ubuntu/ precise main main/debian-installer restricted restricted/debian-installer # disabled on upgrade to precise
# deb-src http://debian.yorku.ca/ubuntu/ precise main restricted # disabled on upgrade to precise
# deb http://debian.yorku.ca/ubuntu/ lucid-updates main restricted # disabled on upgrade to precise
# deb-src http://debian.yorku.ca/ubuntu/ lucid-updates main restricted # disabled on upgrade to precise

# deb http://debian.yorku.ca/ubuntu/ precise universe # disabled on upgrade to precise
# deb-src http://debian.yorku.ca/ubuntu/ precise universe # disabled on upgrade to precise

# deb http://debian.yorku.ca/ubuntu/ precise multiverse # disabled on upgrade to precise
# deb-src http://debian.yorku.ca/ubuntu/ precise multiverse # disabled on upgrade to precise

# deb http://debian.yorku.ca/ubuntu lucid-security main restricted # disabled on upgrade to precise
# deb-src http://debian.yorku.ca/ubuntu lucid-security main restricted # disabled on upgrade to precise
# deb http://debian.yorku.ca/ubuntu lucid-security universe # disabled on upgrade to precise
# deb-src http://debian.yorku.ca/ubuntu lucid-security universe # disabled on upgrade to precise
# deb http://debian.yorku.ca/ubuntu lucid-security multiverse # disabled on upgrade to precise
# deb-src http://debian.yorku.ca/ubuntu lucid-security multiverse # disabled on upgrade to precise
# R sources
# see http://cran.us.r-project.org/bin/linux/ubuntu/ for details
# deb http://probability.ca/cran/bin/linux/ubuntu lucid/ # disabled on upgrade to precise
deb http://archive.ubuntu.com/ubuntu precise main multiverse universe
share|improve this question

2 Answers 2

Install Y PPA Manager mate, it's really intuitive: http://www.webupd8.org/2012/10/y-ppa-manager-0092-released-with-new.html

enter image description here

share|improve this answer

Check if the Sources actually support precise I checked this source [ http://debian.yorku.ca/ubuntu/dists/ ] and there is a precise folder so renaming the sources to precise should work fine. Although on sources that were marked lucid-security you might want to change them to precise-security.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.