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Recently I got lots of GPG errors and tried the following methods at various stages: 

  1. sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3E5C1192 

  2. sudo apt-get install -reinstall ubuntu-extras-keyring

    (For Ubuntu Extras only) 

  3. gpg –keyserver keyserver.ubuntu.com –recv 3E5C1192
gpg –export –armor 3E5C1192 | sudo apt-key add -
sudo apt-get update

  4. sudo aptitude -o Acquire::http::No-Cache=True -o Acquire::BrokenProxy=true update`  

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

I again got BADSIG error for extras.ubuntu.com today. So, I'm really at a loss what's causing this error to occur time and again. I really want to solve this problem once and for all.

Mateo
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Pawan Neupane
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  • Post the output of sudo apt-get update so that we can help you. – karthick87 Dec 19 '10 at 04:09
  • Sadly I now get even more errors for my manually added repositories. Here's the output of my sudo apt-get update: http://paste.ubuntu.com/545647/. I'd really appreciate any help on this. – Pawan Neupane Dec 19 '10 at 16:07
  • I think I should also let you know that the errors surfaced after I downloaded all the installed packages to my cache for creating an APTonCD. I'm not sure if it's because of that, though. – Pawan Neupane Dec 19 '10 at 18:13
  • Please confirm: Which Ubuntu version, and what repository (country)? – david6 Jul 29 '12 at 03:42
  • I'm not getting this on 12.04 32-bit, but it is happening on 12.04 64-bit (both desktop and server). – david6 Jul 31 '12 at 08:05
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    Method 5 works for me. – david6 Jul 31 '12 at 08:18

1 Answers1

1

You can automatically import all missing GPG keys using:

sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install launchpad-getkeys
sudo launchpad-getkeys
Mateo
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Ilias
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