Thursday, February 23, 2017

apt sources.list disabled on upgrade to 12.04

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

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