W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://ftp.cyconet.org wheezy-updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A97AE96A0BEB6D3C
W: Failed to fetch http://ftp.cyconet.org/debian/dists/wheezy-updates/Release
- # Solution:
- apt-get -t wheezy-updates install debian-cyconet-archive-keyring
- apt-get update
