Package: gnupg Version: 2.1.18-8~deb9u3 Reproducer, run the following in an environment without a tty. For me, this is happening in a "docker build". It happens on old Docker versions as well as new.
# apt install gnupg2 (2.1.18-8~deb9u3) $ gpg --verbose --keyserver hkp://keyserver.ubuntu.com:80 \ --keyserver-options timeout=5 --recv-keys \ ABAF11C65A2970B130ABE3C479BE3E4300411886 Error text: gpg: cannot open '/dev/tty': No such device or address If I manually download the debs for gnupg2, dirmngr, and gnupg-agent at '2.1.18-8~deb9u2', it works fine. I grabbed the 3 debs directly from snapshot.debian.org and then installed them with "apt install -V -y *.deb". Example of full failure output (multiple times across different gpg servers): https://travis-ci.org/boot2docker/boot2docker/builds/454166287#L1390-L1427 Thanks, Joe Ferguson
