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I am new to Linux, so this might sound like a simple question, but how do I install a package outside of the APT database? I am trying to install the following package:

https://launchpad.net/ubuntu/+source/pdb2pqr

Any help will be appreciated. Thank you!

Monkey D. Luffy
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    What do you mean by "outside of the APT database"? – muru May 20 '21 at 03:43
  • Please provide OS & release details, the package is available for most on-topic releases as far as I can see https://packages.ubuntu.com/search?suite=all&searchon=names&keywords=pdb2pqr – guiverc May 20 '21 at 03:51
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    What exactly is the problem? `pdb2pqr` is in the `universe` repository. You should be able to install it using `apt` or the GUI package manager. Can you edit your question and include more details about the problem you are experiencing? – Nmath May 20 '21 at 04:09

1 Answers1

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Let's assume you are currently running Huriste Hippo (21.04).

  1. Expand "The Hirsute Hippo (current stable release)" section.

    You will see a list of Package files.

  2. Select and download the the *.deb (*.ddeb) files for your architecture.

    For AMD64, you would pick:

  3. Open a terminal and execute the following commands.

    Let's assume you downloaded these files to your Downloads directory.

    cd ~/Downloads

  4. Add the universe repository so Ubuntu can download other dependent packages you may need. Also this is needed for the gdebi command below.

    sudo apt-add-repository universe
sudo apt update

  5. Install gdebi, a tool to allow you to install *.deb files and automatically install their dependencies.

    sudo apt install gdebi-core

  6. Install your downloaded packages.

    sudo gdebi pdb2pqr_2.1.1+dfsg-7build1_amd64.deb
sudo gdebi pdb2pqr-doc_2.1.1+dfsg-7build1_all.deb
sudo gdebi pdb2pqr-dbgsym_2.1.1+dfsg-7build1_amd64.ddeb
Enterprise
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  • Please do not invent new unique rectangular wheels! https://packages.ubuntu.com/hirsute/pdb2pqr – N0rbert May 20 '21 at 06:09
  • @N0rbert, that's my interpretation of "outside of the APT database". You should post the traditional technique as an answer, especially if the OP is simply looking to install the recommended version of `pdb2pqr` and not download an older/newer/development deb file to install manually? – Enterprise May 20 '21 at 13:35