Skip to content

fix: install the avahi .deb non-interactively past the conffile prompt #7

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
ArnavVWadhwa merged 1 commit into from
Aug 28, 2026
Merged

fix: install the avahi .deb non-interactively past the conffile prompt #7

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions .github/workflows/validate.yml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,11 @@ jobs:
# surfaces on the real image build. Installing stock avahi first makes CI
# reproduce that conflict, which is the whole point of this gate.
apt-get install -y avahi-daemon libnss-mdns
# The real base image also ships an RPi-MODIFIED avahi-daemon.conf, so
# replacing it triggers an interactive dpkg conffile prompt that aborts a
# non-interactive install. Dirty the conffile here so CI reproduces that
# too, not just the file-overwrite conflict.
echo '# dpea-ci: simulate a base-image modified conffile' >> /etc/avahi/avahi-daemon.conf
bash /src/customize.sh
echo "===== assertions ====="
fail=0
Expand Down
10 changes: 9 additions & 1 deletion customize.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,15 @@ grep -q '^i2c-dev' /etc/modules || echo 'i2c-dev' >> /etc/modules
# --- patched avahi (mDNS on 5358) from the prebuilt arm64 .deb (avahi_0.8 CI) ---
AVAHI_DEB_URL="${AVAHI_DEB_URL:-https://github.com/dpengineering/avahi_0.8/releases/latest/download/avahi-dpea_0.8_arm64.deb}"
if curl -fLsS "$AVAHI_DEB_URL" -o /tmp/avahi.deb; then
apt-get install -y /tmp/avahi.deb
# The .deb Replaces stock avahi and ships /etc/avahi/avahi-daemon.conf as a
# conffile. The base image's copy is RPi-modified, so dpkg would raise an
# interactive conffile prompt and abort with "end of file on stdin" in this
# non-interactive chroot. --force-confold keeps the base config (our 5358 patch
# is in the binary/lib, not the conf), --force-confdef handles the rest.
apt-get install -y \
-o Dpkg::Options::=--force-confdef \
-o Dpkg::Options::=--force-confold \
/tmp/avahi.deb
# The stock RPi OS Desktop base already ships avahi, so the .deb must overwrite
# its files (it declares Replaces: for them). A dpkg file-overwrite conflict can
# leave the package uninstalled while apt still exits 0, so assert it is actually
Expand Down
Loading