On Sun, May 22, 2022 at 02:43:17PM +0200, Andreas Beckmann wrote: > Package: opencu > Version: 3-1 > Severity: serious > User: debian...@lists.debian.org > Usertags: piuparts > > Hi, > > during a test with piuparts I noticed your package failed to install > because it tries to overwrite other packages files without declaring a > Breaks+Replaces relation.
Hey Andreas, > > See policy 7.6 at > https://www.debian.org/doc/debian-policy/ch-relationships.html#overwriting-files-and-replacing-packages-replaces > > From the attached log (scroll to the bottom...): > > Selecting previously unselected package opencu. > Preparing to unpack .../archives/opencu_3-2_amd64.deb ... > Unpacking opencu (3-2) ... > dpkg: error processing archive /var/cache/apt/archives/opencu_3-2_amd64.deb > (--unpack): > trying to overwrite '/usr/bin/cu', which is also in package cu 1.07-27+b1 > Errors were encountered while processing: > /var/cache/apt/archives/opencu_3-2_amd64.deb > > > How are cu and opencu supposed to co-exist? > Is cu supposed to be removed from the archive? opencu is a replacement for uudp-cu in the sense that they provide a binary with the same name and users installing opencu are unlikely to also uudp-cu. The binaries are however not 100% cli compatible, so scripts written for uudp-cu won't always work with opencu without adjustments. It looks like we have a similar situation with netcat and netcat-openbsd where the latter declares Breaks+Replaces netcat, so this seems like the correct solution. Regards, Tobias > > > cheers, > > Andreas