This is running on a DigitalOcean VPS: plam@patricklam:~$ uname -a Linux patricklam 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3~deb8u1 (2015-04-24) x86_64 GNU/Linux
plam@patricklam:~$ apt-cache policy $(apt-rdepends -p certbot 2>| /dev/null|awk '/Depends/ {print $2}'|sort -u)|awk '/^[^ ]/ { package=$0 } / Installed/ { print package " " $2 }' awk: (none) base-files: 9.8 ca-certificates: 20161130 debconf: 1.5.60 debconf-2.0: (none) dpkg: 1.18.23 gcc-6-base: 6.3.0-11 init-system-helpers: 1.47 install-info: 6.3.0.dfsg.1-1+b2 libacl1: 2.2.52-3+b1 libattr1: 1:2.4.47-2+b2 libbz2-1.0: 1.0.6-8.1 libc6: 2.24-9 libdb5.3: 5.3.28-12+b1 libexpat1: 2.2.0-2 libffi6: 3.2.1-6 libgcc1: 1:6.3.0-11 libgdbm3: 1.8.3-14 liblzma5: 5.2.2-1.2+b1 libncursesw5: 6.0+20161126-1 libpcre3: 2:8.39-3 libperl5.24: 5.24.1-2 libpython2.7-minimal: 2.7.13-2 libpython2.7-stdlib: 2.7.13-2 libpython-stdlib: 2.7.13-2 libreadline7: 7.0-2 libselinux1: 2.6-3+b1 libsqlite3-0: 3.16.2-3 libssl1.1: 1.1.0e-1 libtinfo5: 6.0+20161126-1 mime-support: 3.60 multiarch-support: 2.24-9 openssl: 1.1.0e-1 perl: 5.24.1-2 perl-base: 5.24.1-2 perl-modules-5.24: 5.24.1-2 python: 2.7.13-2 python2.7: 2.7.13-2 python2.7: 2.7.13-2 python2.7-minimal: 2.7.13-2 python-acme: 0.10.2-1 python: 2.7.13-2 python-certbot: 0.10.2-1 python-cffi-backend-api-max: (none) python-cffi-backend-api-min: (none) python-chardet: 2.3.0-2 python-configargparse: 0.11.0-1 python-configobj: 5.0.6-2 python-cryptography: 1.7.1-2 python-enum34: 1.1.6-1 python-funcsigs: 1.0.2-3 python-idna: 2.2-1 python-ipaddress: 1.0.17-1 python-minimal: 2.7.13-2 python-mock: 2.0.0-3 python-openssl: 16.2.0-1 python-parsedatetime: 2.1-3 python-pbr: 1.10.0-1 python-pkg-resources: 33.1.1-1 python-pyasn1: 0.1.9-2 python-requests: 2.12.4-1 python-rfc3339: 1.0-4 python-setuptools: 33.1.1-1 python-six: 1.10.0-3 python-tz: 2016.7-0.2 python-urllib3: 1.19.1-1 python-zope.component: 4.3.0-1 python-zope.event: 4.2.0-1 python-zope.hookable: 4.0.4-4+b2 python-zope.interface: 4.3.2-1 readline-common: 7.0-2 tar: 1.29b-1.1 tzdata: 2017a-1 zlib1g: 1:1.2.8.dfsg-5 On Tue, Apr 4, 2017 at 12:59 AM, Harlan Lieberman-Berg <hlieber...@debian.org> wrote: > Patrick Lam <prof....@gmail.com> writes: >> I get a similar error on an upgraded stretch box: > > That's perplexing. I just ran an upgrade from jessie to stretch on a > clean box, installed certbot -- works fine. I can't replicate this at > all. What architecture are you running on? > >> The output of the command is empty. > > My guess is you're missing apt-rdepends. Can you install it and rerun > the command please? > > Thanks, > -- > Harlan Lieberman-Berg > ~hlieberman