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Enable Proposed Archive to Install Pre-released Updates in Ubuntu 12.04

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http://ubuntuguide.net – Proposed Archive provides pre-released updates for Ubuntu, by default it’s not enabled. There may be bug fixes or new features in pre-released update packages and you can selectively upgrade them by enabling proposed archive. Enable Proposed Archive in Ubuntu 12.04 (11.04 and higher): Launch Ubuntu Software Center, go to Edit -> Software Sources -> Updates tab, check “Pre-released updates (precise-proposed)” Install Packages from Proposed Archive: After enabling proposed archive, configure apt to allow selective installs of packages from it instead of upgrading all of your p (HowTos)

hwq123's picture
Submitted by hwq123 on 06/08/2012 – Made popular on 06/08/2012

Stories similar to Enable Proposed Archive to Install Pre-released Updates in Ubuntu 12.04

I am currently running Ubuntu 12.04. I intend to do so for the future because of its long time support and stability. However, I would like to contribute to testing proposed updates for Precise. I know that the proposed updates can be enabled through software sources. However doing so will install all proposed updates.

I tried all the solutions on this and still having an issue.

I am behind a proxy so I have updated /etc/apt/apt.conf with my proxy settings and I have removed the old lists with sudo rm /var/lib/apt/lists/* -vf.

However I still get the following:

sudo apt-get update

Ign http://gb.archive.ubuntu.com precise InRelease Ign http://gb.archive.ubuntu.com precise-updates InRelease Ign http://gb.archi

It's been a week now that whenever i run sudo apt-get update it shows me this:

Err http://archive.ubuntu.com quantal InRelease Err http://archive.ubuntu.com quantal-updates InRelease Err http://archive.ubuntu.com quantal-backports InRelease Err http://archive.ubuntu.com quantal-security InRelease Err http://archive.ubuntu.com quantal-proposed InRelease Err http://archi

I keep getting this warning whenever I try to run sudo apt-get update

W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_precise-updates_main_binary-i386_Packages) W: You may want to run apt-get update to correct these problems

Below is the output from /etc/apt/sources.list file

deb http://arc

I used the command apt-get install cups. There were packages without authentication. When asked to install I chose [y]. Then the following output came out and CUPS was not installed.

I'm running apt-get update, and I see errors like

W: GPG error: http://us.archive.ubuntu.com precise Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

It's not hard to find instructions on how to fix these problems, for instance by asking for the new keys with apt-key adv --recv-keys or rebuilding the cache;

I am getting below GPG error on running the command 'sudo apt-get update'

W: GPG error: http://in.archive.ubuntu.com precise Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key W: Duplicate sources.list entry http://archive.canonical.com/ubuntu/ precise/partner i386 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_precise_pa

After installing 12.04 (Release Candidate), and accepting all updates and upgrades till today, I find that sudo apt-get update invariably fetches information in the MB range, about 12 MB, whereas sudo apt-get upgrade mostly has nothing to download.

The biggest three fetches I see are:

http://archive.ubuntu.com precise/universe Sources [5,019 kB] http://archive.ubuntu.com precise/main i386 Packag

Hi!! I want to download the 12.04 repository to my HDD in order to have an offline Ubuntu repo. I checked at http://archive.ubuntu.com/ubuntu/dists/ and the whole precise repository precise-backports/30-Nov-2012 05:55 - precise-proposed/03-Dec-2012 05:37 - precise-security/30-Nov-2012 05:55 - precise-updates/30-Nov-2012 05:55 - precise/is only ~10 GB. Is this correct?