I'm trying to follow the instructions here in order to install puredata on my Pi. I'm getting the following error:
W: GPG error: http://backports.debian.org squeeze-backports Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553
When I try
sudo apt-get update with the repositories in:
So I tried
sudo wget -O - http://backports.org/debian/archive.key | apt-key add - but there is no server at backports.org. So my question is where is the archive.key for these repositories?