Eu sugiro estes:
sudo apt-get clean
sudo mv /var/lib/apt/lists /tmp
sudo mkdir -p /var/lib/apt/lists/partial
sudo apt-get clean
sudo apt-get update
Estou recebendo muitos erros assim:
W: An error occurred during the signature verification.
The repository is not updated and the previous index files will be used.
GPG error: http://ftp.uk.debian.org/debian stretch-updates
InRelease: The following signatures couldn't be verified because the public key
is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010
Tentou adicionar as chaves manualmente usando:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8B48AD6246925553
e ele diz que importou / processou, mas eu ainda recebo os mesmos erros.
Eu sugiro estes:
sudo apt-get clean
sudo mv /var/lib/apt/lists /tmp
sudo mkdir -p /var/lib/apt/lists/partial
sudo apt-get clean
sudo apt-get update