• If you are getting BADSIG errors when updating your Backtrack install.. (Like below)

Reading package lists... Done
W: GPG error: http://32.repository.backtrack-linux.org revolution Release: The following signatures were invalid: BADSIG AB6DA34B475A6B7F BackTrack Repository Admin <emgent@backtrack-linux.org>
W: GPG error: http://all.repository.backtrack-linux.org revolution Release: The following signatures were invalid: BADSIG AB6DA34B475A6B7F BackTrack Repository Admin <emgent@backtrack-linux.org>
W: GPG error: http://updates.repository.backtrack-linux.org revolution Release: The following signatures were invalid: BADSIG AB6DA34B475A6B7F BackTrack Repository Admin <emgent@backtrack-linux.org>

• You can run the following commands to clean things up and allow your updates to start working again. I found this on someone else’s website in regards to Ubuntu updates, so it doesn’t have anything directly to do with Backtrack as far as I can tell.

• I created a little script called fixsig.sh to resolve this issue as it seems to happen a lot to me. Probably because of something I’m doing causing the issue.

root@bt:~# cat fixsig.sh
sudo apt-get clean 
cd /var/lib/apt 
sudo mv lists lists.old 
sudo mkdir -p lists/partial 
sudo apt-get clean 
sudo apt-get update
root@bt:~#

Hope this helps someone!