If anyone can't wait for updates, removing the keyring URI from /usr/bin/apt-key should disable the fetch:
#ARCHIVE_KEYRING_URI=http://archive.ubuntu.com/ubuntu/project/ubuntu-archive-keyring.gpg ARCHIVE_KEYRING_URI=
If anyone can't wait for updates, removing the keyring URI from /usr/bin/apt-key should disable the fetch:
#ARCHIVE_ KEYRING_ URI=http:// archive. ubuntu. com/ubuntu/ project/ ubuntu- archive- keyring. gpg KEYRING_ URI=
ARCHIVE_