How to trust a apt repository : Debian apt-get update error public key is not available: NO_PUBKEY <id> [closed]
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 8 years ago . Trying to update some repositories on Debian Etch installation and getting the following errors from running "apt-get update" W: GPG error: http://www.debian-multimedia.org etch Release: The following signatures couldn't be verified because teh public key is not available: NO_PUBKEY 07DC563D1F41B907 W: You may