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Software Centre will not download anything at all. Gives an error message saying it 'Failed to download package - Check internet connection'. And, sometimes, if you try again, 'involves downloading untrusted packages'.

Any ideas?

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Possible duplicate:… – Christopher Kyle Horton Nov 16 '11 at 12:12

Software Center not downloading .

Failed to download package files.

Check your Internet connection..

Run the following commands (saves a backup of the old lists and creates a new lists folder) and the BADSIG error does not occur:

cd /var/lib/apt .
sudo mv lists lists.old
sudo mkdir -p lists/partial
sudo apt-get update
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