Hi, I've re-built a version of libirt, which has:
> Package: libvirt-daemon-system > Replaces: libvirt-bin (<< 1.2.7-4~) > Conflicts: libvirt-bin (<< 1.2.6-1~) ... > Package: libvirt-bin > Depends: libvirt-daemon-system (>= ${binary:Version}), The old "libvirt-bin" package (0.9.12-5) contained "/etc/default/libvirt-guests", which got moved to "libvirt-daemon-system" for 1.2.7, thus the "Replaces". During the package upgrade "dpkg" complains about the file still being owned by "libvirt-bin" and prevents "libvirt-daemon-system" from taking over the file > Entpacken von libvirt-daemon-system (aus > .../libvirt-daemon-system_1.2.7-11_amd64.deb) ... > dpkg: Fehler beim Bearbeiten von > /var/cache/apt/archives/libvirt-daemon-system_1.2.7-11_amd64.deb (--unpack): > Versuch, »/etc/default/libvirt-guests« zu überschreiben, welches auch in > Paket libvirt-bin 1.2.7-11 ist Reading /var/log/dpkg.log I see: > 2016-03-07 15:39:04 upgrade libvirt-bin:amd64 0.9.12-5 1.2.7-11 > 2016-03-07 15:39:04 status half-configured libvirt-bin:amd64 0.9.12-5 > 2016-03-07 15:39:04 status unpacked libvirt-bin:amd64 0.9.12-5 > 2016-03-07 15:39:04 status half-installed libvirt-bin:amd64 0.9.12-5 > 2016-03-07 15:39:04 status half-installed libvirt-bin:amd64 0.9.12-5 > 2016-03-07 15:39:04 status half-installed libvirt-bin:amd64 0.9.12-5 > 2016-03-07 15:39:04 status unpacked libvirt-bin:amd64 1.2.7-11 > 2016-03-07 15:39:04 status unpacked libvirt-bin:amd64 1.2.7-11 > 2016-03-07 15:39:04 install libvirt-clients:amd64 <keine> 1.2.7-11 > 2016-03-07 15:39:04 status half-installed libvirt-clients:amd64 1.2.7-11 > 2016-03-07 15:39:04 status half-installed libvirt-clients:amd64 1.2.7-11 > 2016-03-07 15:39:04 status unpacked libvirt-clients:amd64 1.2.7-11 > 2016-03-07 15:39:04 status unpacked libvirt-clients:amd64 1.2.7-11 > 2016-03-07 15:39:10 install libvirt-daemon:amd64 <keine> 1.2.7-11 > 2016-03-07 15:39:10 status half-installed libvirt-daemon:amd64 1.2.7-11 > 2016-03-07 15:39:10 status half-installed libvirt-daemon:amd64 1.2.7-11 > 2016-03-07 15:39:10 status unpacked libvirt-daemon:amd64 1.2.7-11 > 2016-03-07 15:39:10 status unpacked libvirt-daemon:amd64 1.2.7-11 > 2016-03-07 15:39:10 install libvirt-daemon-system:amd64 <keine> 1.2.7-11 > 2016-03-07 15:39:10 status half-installed libvirt-daemon-system:amd64 1.2.7-11 > 2016-03-07 15:39:10 status not-installed libvirt-daemon-system:amd64 <keine> > 2016-03-07 15:39:10 upgrade libvirt0:amd64 0.9.12-5 1.2.7-11 > 2016-03-07 15:39:10 status half-configured libvirt0:amd64 0.9.12-5 > 2016-03-07 15:39:10 status unpacked libvirt0:amd64 0.9.12-5 > 2016-03-07 15:39:10 status half-installed libvirt0:amd64 0.9.12-5 > 2016-03-07 15:39:10 status half-installed libvirt0:amd64 0.9.12-5 > 2016-03-07 15:39:10 status unpacked libvirt0:amd64 1.2.7-11 > 2016-03-07 15:39:10 status unpacked libvirt0:amd64 1.2.7-11 > 2016-03-07 15:39:11 configure libvirt0:amd64 1.2.7-11 <keine> > 2016-03-07 15:39:11 status unpacked libvirt0:amd64 1.2.7-11 > 2016-03-07 15:39:11 status half-configured libvirt0:amd64 1.2.7-11 > 2016-03-07 15:39:11 status installed libvirt0:amd64 1.2.7-11 > 2016-03-07 15:39:13 configure libvirt-clients:amd64 1.2.7-11 <keine> > 2016-03-07 15:39:13 status unpacked libvirt-clients:amd64 1.2.7-11 > 2016-03-07 15:39:13 status unpacked libvirt-clients:amd64 1.2.7-11 > 2016-03-07 15:39:13 status unpacked libvirt-clients:amd64 1.2.7-11 > 2016-03-07 15:39:13 status half-configured libvirt-clients:amd64 1.2.7-11 > 2016-03-07 15:39:13 status installed libvirt-clients:amd64 1.2.7-11 > 2016-03-07 15:39:13 configure libvirt-daemon:amd64 1.2.7-11 <keine> > 2016-03-07 15:39:13 status unpacked libvirt-daemon:amd64 1.2.7-11 > 2016-03-07 15:39:13 status half-configured libvirt-daemon:amd64 1.2.7-11 > 2016-03-07 15:39:13 status installed libvirt-daemon:amd64 1.2.7-11 > 2016-03-07 15:40:12 install libvirt-daemon-system:amd64 <keine> 1.2.7-11 > 2016-03-07 15:40:12 status half-installed libvirt-daemon-system:amd64 1.2.7-11 > 2016-03-07 15:40:12 status not-installed libvirt-daemon-system:amd64 <keine> Looking into "/var/lib/dpkg/status" I see: > Package: libvirt-bin > Status: install ok unpacked > Version: 1.2.7-11 > Config-Version: 0.9.12-5 To me it looks like dpkg already uses the *new* version "1.2.7-11" of "libvirt-bin" after unpacking, which prevent the "Replaces << 1.2.7-4" of "libvirt-daemon-system" from being allowed. Is this a know bug (of dpkg) or did I misunderstand anything? dpkg 1.16.16 Thanks in advance. Philipp PS: To my understanding the "Conflicts" should be changed to "Breaks", but that's another issue.