Description of problem: Packages should not leave content in /var at installation time as content in /var is dedicated for variable files. See FHS2.3: https://refspecs.linuxfoundation.org/FHS_2.3/fhs-2.3.pdf However, unbound package ships content in /var How reproducible: Make a containerfile from fedora-coreos:stable. Install cockpit-machine package (it has deps including unbound) and build image Steps to Reproduce: 1. make Containerfile (see additional info) 2. podman build --tag localhost:fcos-extended -f ./Containerfile . Actual results: podman logs: + ostree container commit .. omitted .. Found file: "var/lib/gssproxy/default.sock" error: Found content in var Error: error building at STEP "RUN set -x; PACKAGES_INSTALL="cockpit-podman cockpit-machines cockpit-networkmanager cockpit-storaged cockpit-system cockpit-ostree cockpit-bridge"; rpm-ostree install $PACKAGES_INSTALL && ostree container commit": error while running runtime: exit status 1 Expected results: Successfully build image Additional info: - Containerfile FROM quay.io/fedora/fedora-coreos:stable RUN set -x; PACKAGES="cockpit-podman cockpit-machines cockpit-networkmanager cockpit-storaged cockpit-system cockpit-ostree cockpit-bridge"; \ rpm-ostree install $PACKAGES && ostree container commit