Bug#673931: sumo and netgen: error when trying to install together

Tue May 22 06:22:45 UTC 2012

Package: netgen,sumo
Version: netgen/4.9.13.dfsg-4
Version: sumo/0.15.0~dfsg-1
Severity: serious
User: treinen at debian.org
Usertags: edos-file-overwrite

Date: 2012-05-22
Architecture: amd64
Distribution: sid

Hi,

automatic installation tests of packages that share a file and at the
same time do not conflict by their package dependency relationships has
detected the following problem:

WARNING: The following packages cannot be authenticated!
  libkeyutils1 libkrb5support0 libk5crypto3 libkrb5-3 libgssapi-krb5-2
  libsasl2-2 libldap-2.4-2 libpcre3 libxml2 libavutil51 libdirac-encoder0
  libgsm1 libmp3lame0 libopenjpeg2 liborc-0.4-0 libschroedinger-1.0-0
  libspeex1 libogg0 libtheora0 libva1 libvorbis0a libvorbisenc2 libvpx1
  libx264-123 libxvidcore4 libavcodec53 librtmp0 libavformat53 libssh2-1
  libcurl3-gnutls libdap11 libdapclient3 libdapserver7 libdrm2 libexpat1
  libffi5 libfreetype6 ucf ttf-dejavu-core fontconfig-config libfontconfig1
  gcc-4.7-base libquadmath0 libgfortran3 libglapi-mesa libxau6 libxdmcp6
  libxcb1 libx11-data libx11-6 libx11-xcb1 libxcb-glx0 libxfixes3 libxdamage1
  libxext6 libxxf86vm1 libgl1-mesa-glx libglib2.0-0 libglu1-mesa x11-common
  libice6 libicu48 libjpeg8 libjasper1 liblcms1 libltdl7 mysql-common
  libmysqlclient18 libodbc1 libpng12-0 libsm6 libswscale2 libjbig0 libtiff4
  libxrender1 libxcursor1 libxft2 libxt6 libxmu6 libxss1 odbcinst
  odbcinst1debian2 libfreexl1 libblas3gf liblapack3gf libarmadillo3
  libc-dev-bin linux-libc-dev libc6-dev libexpat1-dev zlib1g-dev
  libfreetype6-dev pkg-config libfontconfig1-dev libfox-1.6-0 libftgl2
  libgeos-3.3.1 libgeos-c1 libgif4 libgl2ps0 libhdf5-7 libjpeg62 libnetcdfc7
  liboce-foundation2 liboce-modeling2 liboce-ocaf-lite2 liboce-visualization2
  liboce-ocaf2 libnglib-4.9.13 libpoppler13 libpq5 libpthread-stubs0
  libpthread-stubs0-dev liburiparser1 xorg-sgml-doctools x11proto-core-dev
  libxau-dev libxdmcp-dev x11proto-input-dev x11proto-kb-dev xtrans-dev
  libxcb1-dev libx11-dev libxerces-c28 x11proto-xext-dev libxext-dev
  x11proto-render-dev libxrender-dev libxft-dev x11proto-scrnsaver-dev
  libxss-dev tcl8.5 tix tcl8.5-dev tk8.5 tk8.5-dev tix-dev libtogl1 netgen
  libepsilon0 libhdf4-0-alt libkml0 proj-data libproj0 libogdi3.2
  libspatialite3 libgdal1 sumo

Extracting templates from packages: 20%
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dpkg: error processing /var/cache/apt/archives/sumo_0.15.0~dfsg-1_amd64.deb (--unpack):
 trying to overwrite '/usr/bin/netgen', which is also in package netgen 4.9.13.dfsg-4
configured to not write apport reports
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Processing triggers for man-db ...
Errors were encountered while processing:
 /var/cache/apt/archives/sumo_0.15.0~dfsg-1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

This is a serious bug as it makes installation fail, and violates
sections 7.6.1 and 10.1 of the policy. An optimal solution would
consist in only one of the packages installing that file, and renaming
or removing the file in the other package. Depending on the
circumstances you might also consider Replace relations or file
diversions. If the conflicting situation cannot be resolved then, as a
last resort, the two packages have to declare a mutual
Conflict. Please take into account that Replaces, Conflicts and
diversions should only be used when packages provide different
implementations for the same functionality.

Here is a list of files that are known to be shared by both packages
(according to the Contents file for sid/amd64, which may be
slightly out of sync):

  /usr/bin/netgen
  /usr/share/man/man1/netgen.1.gz

This bug has been filed against both packages. If you, the maintainers of
the two packages in question, have agreed on which of the packages will
resolve the problem please reassign the bug to that package. You may then
also register in the BTS that the other package is affected by the bug.

-Ralf.

PS: for more information about the detection of file overwrite errors
of this kind see http://edos.debian.net/file-overwrites/.