W: GPG error: http://security.debian.org/debian-security buster/updates InRelease: At least one invalid signature was encountered. E: The repository 'http://security.debian.org/debian-security buster/updates InRelease' is not signed. W: GPG error: http://deb.debian.org/debian buster-updates InRelease: At least one invalid signature was encountered. E: The repository 'http://deb.debian.org/debian buster-updates InRelease' is not signed. $ echo "conf-dir=$PWD/dnsmasq.d,*.conf" | tee /etc/dnsmasq.conf conf-dir=/builds/mycard/dnsmasq/dnsmasq.d,*.conf $ dnsmasq --test /bin/bash: line 102: dnsmasq: command not found ERROR: Job failed: exit code 1