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I know how to install GNOME 3 and KDE using apt-get.

But i want to know how to, only download, from synaptic package manager, these shells. When i search for kubuntu-desktop in synaptic then the download file shows nearly 4MB but i clearly remember the actual size was near >100 mb. Just for information both are already installed in my laptop.

So the question is - How to download the actuall >100 mb KUbuNTU-DESKTOP so that i can just, without any hesitation install it in offline computer which is using ubuntu 12.04.

Same for the GNOME 3. Please help me out !

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1 Answer

up vote 2 down vote accepted

Download a package without installing using apt-get:

apt-get --download-only install <packagename>

To (re)download all currently installed packages do:

dpkg -l | grep '^ii' | awk '{ print $2 }' | xargs apt-get --download-only --reinstall -y install

The .deb files will be stored under /var/cache/apt/archives. Take those files and copy them to the offline machine. Then you can install them without downloading.

This assumes that at least the package list of the currently available packages are in sync on both systems. If not, things will get more complicated...

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apt-get -d install gnome-shell is not downloading anything. and the next command, its for some reason ends its execution. –  Arin Chakraborty Dec 12 '12 at 22:21
    
And please also tell me what to download in order to fully download the kubuntu-desktop please. –  Arin Chakraborty Dec 12 '12 at 22:34
    
If it's not downloading anything then the needed files are probably already in '/var/cache/apt/archives' from a previous install. If gnome-shell is already installed you need to add the --reinstall switch. –  Andy Friese Dec 12 '12 at 22:34
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apt-cache depends <package_name> lists the package dependencies –  Andy Friese Dec 12 '12 at 22:37
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Janitor from ubuntu-tweak? Sure this tool cleaned your "unnecessary" caches... I've absolutely no idea what else it did to "optimize" your system, so I'm out. If I were you I would try to understand the long commandline from my answer and find out which part is failing. Good luck! –  Andy Friese Dec 12 '12 at 23:03
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