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I am trying to install this deb package http://packages.ubuntu.com/precise/utils/b43-fwcutter but whenever I doubleclick it the install button is disabled.

I don't have internet connection.

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Most likely you are missing dependencies and that's why software center refuses to install. – con-f-use Jul 14 '12 at 9:10
    
Do you have all the dependencies? – Anwar Shah Jul 14 '12 at 9:12
    
Do you have the package locally? Has it been downloaded? – Mitch Jul 14 '12 at 9:15
    
How to find out what I am missing? Software center doesn't prompt anything. @Mitch yes, I downloaded it. – lunar Jul 14 '12 at 9:18
1  
You also need firmware-b43-installer. One big problem is that package needs an internet connection to download the Broadcom binary firmware package, so it's easiest if you can somehow get an Ethernet connection for just a few minutes. – izx Jul 14 '12 at 9:23
up vote 13 down vote accepted

Open a terminal and go to the directory where the .deb file in loacated.

Then execute

sudo dpkg -i b43-fwcutter_015-9_i386.deb

This should work.

Note: Most of the time, this should not work if you don't have all dependent packages installed. But I inspected this package, and see that, it is only dependent on libc6 package, which is automatically installed by Ubuntu. Hence it should work.

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or you can install multiple deb package by typing sudo dpkg -i *.*deb – Kaktarua Jul 14 '12 at 9:15
1  
@Kaktarua, yes, only if you have all dependencies in the folder. – Anwar Shah Jul 14 '12 at 9:18
    
Thanks Anwar Shah you answer helped me to install the package. – lunar Jul 14 '12 at 9:31

I know it's a late answer, but you can install a .deb file by right-clicking on it and then selecting the Open in software center option.

This will take you to the software center from where you can install it very easily.

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You can also use GDebi if you want to install .deb packages via a GUI. I've used it to install Kernel updates before, it does a great job.

Look for GDebi in the Software Center.

Stay Awesome and Always Believe

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You can use dpkg command for it. I am adding the screenshot to get a clear picture from the terminal. How and where it will run.

I have installed a deb package successfully using it.

desktop:/home$ sudo dpkg -i suyash/google-webdesigner_current_amd64.deb 

enter image description here

Hope it will Help you.

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Like the accepted answer posted 4 years ago? askubuntu.com/a/163411/158442 – muru 2 days ago
    
A picture is always good and easy for beginners to understand. that's why i have added image of terminal. – Suyash Kumar Bharti 2 days ago
    
Your picture is just text. You could just have copied the text here. It would be more readable, and you wouldn't have to edit the image to redact it like this – muru 2 days ago
    
thanks for this suggestion . take care of it in next post – Suyash Kumar Bharti yesterday

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