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I am trying to install Ubuntu 12.10 and by the way my wireless is not working. So, I'm trying to fix this problem manually. I have installed the 64 bit Ubuntu already. The problem is I cannot install any packages because when I do I get an error. For example if I run thus command sudo dpkg -i wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb, I get this error:

dpkg: error processing wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb (--install: package architecture (amd64) does not match system (i386)

I also get this error if I try to install any package. My system is a Dell 3421 which has an i5 processor so I don't know why Ubuntu think I have a i386 system. If I run the uname command I get these results:

uname -i 

uname -p


Thanks in advance for any help.

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what is the output of uname -a ? – fossfreedom Apr 1 '13 at 9:37
Linux my6543-Inspiron-3421 3.5.0-17-generic #28-Ubuntu SMP Tue OCT 9 19:32:08 UT C 2012 i686 i686 i686 GNU/Linux – GeorgeJ Apr 1 '13 at 9:54

The different variants of uname gives an indication of the kernel that you have installed.

This in turn gives a clue as to the version of Ubuntu you have installed as well as the explanation of your error

error: package architecture (amd64) does not match system (i386)

On a 64bit install you would expect something like:

Linux emachine 3.5.0-26-generic #42~precise1-Ubuntu SMP Mon Mar 11 22:17:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

The key part is x86_64 which indicates a 64bit installation.

Your output - i686 indicates that you have installed a 32bit version of Ubuntu.

Some useful links at the end - suffice to say - you cannot install a 64bit debian package on a 32bit system. That is what your error message is basically informing you.

You'll need the 32bit variant of the package - it usually ends with the name i386.deb.

Useful links:

share|improve this answer
I double checked and you are right. I downloaded and installed the i386 version. Thanks a lot. – GeorgeJ Apr 1 '13 at 10:42

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