Package: ucf Version: 3.0036 Severity: important Dear Maintainer,
* What led up to the situation? Trying to manually install a debian package while building a custom ISO `sudo chroot squashfs-root dpkg --force-confnew -i tmp/my-package_0.1.0_amd64.deb` Unfortunatly `dpkg` does not pass `--force-confnew` to `ucf` `ucf` prompts for user input during install ``` A new version (/usr/share/my-package/config) of configuration file /etc/xdg/autostart/gnome-keyring-ssh.desktop is available, but the version installed currently has been locally modified. ``` `UCF_FORCE_CONFFNEW` silences the config compare/selection dialog and installs the config file, but somehow it does not create a `/etc/xdg/autostart/gnome-keyring-ssh.desktop.ucf-old` file. Without setting `UCF_FORCE_CONFFNEW` the package installs correctly, but it requires that `install the package maintainer's version` is selected manually. ```console $ more debian/postinst #!/bin/sh set -e case "$1" in configure) UCF_FORCE_CONFFNEW=1 ucf /usr/share/my-package/config /etc/xdg/autostart/gnome-keyring-ssh.desktop ``` * What exactly did you do (or not do) that was effective (or ineffective)? `sudo chroot squashfs-root /usr/bin/env DEBIAN_FRONTEND=noninteractive dpkg --force-confnew -i tmp/my-package_0.1.0_amd64.deb` This creates `/etc/xdg/autostart/gnome-keyring-ssh.desktop.ucf-dist` which I suppose means it is defaulting to the old config file. `sudo chroot squashfs-root /usr/bin/env DEBIAN_FRONTEND=noninteractive UCF_FORCE_CONFFNEW=1 dpkg --force-confnew -i tmp/my-package_0.1.0_amd64.deb` installs the new version but no backup is created, as mentioned above. * What was the outcome of this action? Nothing really works right here, I'm going back to diversions. Hopefully this bug report helps. * What outcome did you expect instead? `dpkg --force-confnew` should be passed to ucf somehow `UCF_FORCE_CONFFNEW=1` should perform the same as manually selecting the new conffile Maybe this is more than one bug. Maybe `dpkg` should set UCF_FORCE_CONFFNEW when --force-confnew is set. Maybe ucf should just accept --force-confnew, I don't know. UCF_FORCE_CONFFNEW definatly seems buggy though. -- System Information: Debian Release: stretch/sid APT prefers xenial-updates APT policy: (500, 'xenial-updates'), (500, 'xenial-security'), (500, 'xenial'), (100, 'xenial-backports') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.15.0-46-generic (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages ucf depends on: ii coreutils 8.25-2ubuntu3~16.04 ii debconf 1.5.58ubuntu1 ucf recommends no packages. ucf suggests no packages. -- debconf information: ucf/conflicts_found: ucf/changeprompt_threeway: keep_current ucf/changeprompt: keep_current ucf/show_diff: ucf/title: