Thursday, February 21, 2013
W: GPG error: http://nginx.org squeeze Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ABF5BD827BD9BF62
If you get that error, add nginx public key to your keyring like this:
curl http://nginx.org/packages/keys/nginx_signing.key | sudo apt-key add -
...then you should be able to run `sudo apt-get update` on your newly added nginx repos.
This was on Debian 6, should work on ubuntu too.