Download Packages With Dependencies Locally In Ubuntu

Download Packages with dependencies locally in Ubuntu

A while ago, we published an article that described how to Install Softwares offline in Ubuntu. In that guide, we explained how can you download packages in an Internet-enabled system, and install them offline in another system that has slow or no Internet connection. In this tutorial, we will see how to download a .DEB package along with all required dependencies without actually installing it. Using this method, we can download packages from one system and install them later in the same system itself or any other system that has no Internet connection. We can also download packages for different architecture systems. For example, it is possible to download the 32 bit packages from a 64 bit system and vice versa. Alright, without further ado, let us get started, shall we?

Download Packages With Dependencies Locally In Ubuntu

We can do this in two methods. For the purpose of this tutorial, I will be using Ubuntu 16.04 LTS desktop.

Method 1:

This is the simplest and straight forward method than everything else.

To download a package with all dependencies without installing them, run:

sudo apt-get install --download-only <package_name>

All downloaded files will be saved in /var/cache/apt/archives directory. Just copy the entire cache folder on any USB or transfer them via network to any system where you wanted to install the packages.

To install the downloaded packages, go to the cache folder and install them as shown below.

sudo dpkg -i *

See? It is easier than you ever thought, isn’t? Well, let us see the another method.

Method 2:

First, download the dependencies of the package you wanted to download.

To display list of all dependencies of a package, for example Python, run:

sudo apt-cache depends python

Sample output:

PreDepends: python-minimal
Depends: python2.7
Depends: libpython-stdlib
Conflicts: <python-central>
Breaks: update-manager-core
Suggests: python-doc
Suggests: python-tk
Replaces: python-dev

Let us download python package with its dependencies to our local disk.

To do so, first create a directory to save the packages.

mkdir python

Go to the directory:

cd python

And then run:

for i in $(apt-cache depends python | grep -E 'Depends|Recommends|Suggests' | cut -d ':' -f 2,3 | sed -e s/'<'/''/ -e s/'>'/''/); do sudo apt-get download $i 2>>errors.txt; done

The above command will download Python package along with all required dependencies and saves them in the current working directory. This command will also save any errors in the errors.txt file.

Let us view the downloaded files using ‘ls’ command:


Sample output:


Download packages locally in Ubuntu

As you see in the above output, python package with all its dependencies has been downloaded.

Just copy them to your USB drive and install the python packages on any offline system as shown below.

Mount the USB drive, go to the location where you have mounted the drive, and run the following command to install Python.

sudo dpkg -i *

Suggested Read : How To Download A RPM Package With All Dependencies In CentOS

Download packages with dependencies locally for a specific architecture

You might notice that the above command has downloaded the 64 bit packages. It is because I am downloading them from 64 bit Ubuntu system. What if you want to download packages for 32 bit arch systems? It’s also possible.

First, enable the architecture you want in your Ubuntu system using command:

sudo dpkg --add-architecture i386

If you don’t add the architecture, you will get the following error message when try to download the packages.

E: No packages found

After enabling the Architecture of your choice, run the following command to download specific architecture related packages.

for i in $(apt-cache depends python:i386 | grep -E 'Depends|Recommends|Suggests' | cut -d ':' -f 2,3 | sed -e s/'<'/''/ -e s/'>'/''/); do sudo apt-get download $i 2>>errors.txt; done

As you see in the above output, I have added the architecture ‘i386’ with ‘apt-cache’ command.

Sample output:

Get:1 xenial/main i386 python-minimal i386 2.7.11-1 [28.2 kB]
Fetched 28.2 kB in 1s (25.8 kB/s) 
Get:1 xenial/main i386 python2.7 i386 2.7.11-7ubuntu1 [220 kB]
Fetched 220 kB in 1s (116 kB/s) 
Get:1 xenial/main i386 libpython-stdlib i386 2.7.11-1 [7,664 B]
Fetched 7,664 B in 0s (13.3 kB/s) 
Get:1 xenial/main i386 python-tk i386 2.7.11-2 [28.0 kB]
Fetched 28.0 kB in 1s (24.8 kB/s)
Download packages locally 

Let us check the downloaded packages.


Sample output:


See? The above command downloaded 32 bit packages only.

And, that’s for all now. You know now how to download packages with dependencies in Ubuntu systems. This method is same for Debian, Linux Mint, and other Ubuntu derivatives. Hope this helps. I will be here again with an Interesting article. Until then, stay tuned with OSTechNix.


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3 Responses

  1. Rocket Racoon says:

    Why are turtles addicted to Linux?

    A: Because they can’t live without their shell 🙂

  2. Dileep says:

    How to download a Debian package of specific version and all its dependencies(including recommended) ? Above apt-cache command doesn’t account for version of the package.

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