W: GPG error: http://kambing.ui.ac.id squeeze Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY E9C74FEEA2098A6E
W: GPG error: http://kambing.ui.ac.id squeeze-updates Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553
W: GPG error: http://kambing.ui.ac.id squeeze-backports Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553
root@gammu:~#
solusi
gpg –keyserver pgpkeys.mit.edu –recv-key E9C74FEEA2098A6E
gpg -a –export E9C74FEEA2098A6E | apt-key add –
gpg –keyserver pgpkeys.mit.edu –recv-key 8B48AD6246925553
gpg -a –export 8B48AD6246925553 | apt-key add –