04th Feb2013
Author: Gyro

Ubuntu update/upgrade fails with dpkg error message

Today, my Ubuntu was unable to install update.

I got this error message after trying to update Ubuntu:

dpkg: error: parsing file ‘/var/lib/dpkg/available' near line 15054 package ‘unity-common':
duplicate value for `Architecture' field
E: Sub-process /usr/bin/dpkg returned an error code (2)

After some research and trial'n'error, I came up with this solution:

1.Clear the content of the "available" file
# sudo nano /var/lib/dpkg/available
# sudo rm /var/lib/dpkg/available
# sudo touch /var/lib/dpkg/available

2. "Reset"
# sudo dpkg --configure -a
# sudo apt-get clean

3. Update/Upgrade again
# sudo apt-get update
# sudo apt-get upgrade

That should be all!

Step 2 may be unnecessary, but I have no way of testing it again… maybe someone with the same or a similar problem can try it without step 2 and let me know? ;)


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