Merge pull request #2332 from dbnicholson/ubuntu-ci

travis: Don't ask any debconf questions when installing packages

.travis.yml

@@ -6,7 +6,6 @@ env:
   - ci_docker=debian:buster-slim ci_distro=debian ci_suite=stretch ci_configopts="--with-ed25519-libsodium" ci_pkgs="libsodium-dev"
   - ci_docker=debian:buster-slim ci_distro=debian ci_suite=stretch ci_configopts="--with-curl --with-ed25519-libsodium --without-gpgme" ci_pkgs="libsodium-dev"
   - ci_docker=ubuntu:focal ci_distro=ubuntu ci_suite=focal
-  - ci_docker=i386/ubuntu:focal ci_distro=ubuntu ci_suite=focal
   - ci_docker=ubuntu:groovy ci_distro=ubuntu ci_suite=groovy
 
 script:

ci/travis-install.sh

@@ -82,6 +82,10 @@ esac
 
 case "$ci_distro" in
     (debian|ubuntu)
+        # Make debconf run non-interactively since its questions can't
+        # be answered.
+        export DEBIAN_FRONTEND=noninteractive
+
         # TODO: fetch this list from the Debian packaging git repository?
         $sudo apt-get -y update
         $sudo apt-get -y install \