[Debian-med-packaging] Bug#657644: wcstools and emboss: error when trying to install together

[Ralf Treinen]

Package: emboss,wcstools
Version: emboss/6.3.1-6+b1
Version: wcstools/3.8.4-1
Severity: serious
User: treinen at debian.org
Usertags: edos-file-overwrite

Date: 2012-01-27
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 libexpat1 libfreetype6 libpng12-0 libxau6 libxdmcp6
  libxcb1 libx11-data libx11-6 libjpeg8 libgd2-noxpm libhpdf-2.2.1
  mysql-common libmysqlclient16 libpq5 emboss-lib emboss-data emboss
  libwcstools0 wcstools
Authentication warning overridden.
Can not write log, openpty() failed (/dev/pts not mounted?)
Selecting previously unselected package libkeyutils1.
(Reading database ... 10520 files and directories currently installed.)
Unpacking libkeyutils1 (from .../libkeyutils1_1.5.2-2_amd64.deb) ...
Selecting previously unselected package libkrb5support0.
Unpacking libkrb5support0 (from .../libkrb5support0_1.10+dfsg~beta1-2_amd64.deb) ...
Selecting previously unselected package libk5crypto3.
Unpacking libk5crypto3 (from .../libk5crypto3_1.10+dfsg~beta1-2_amd64.deb) ...
Selecting previously unselected package libkrb5-3.
Unpacking libkrb5-3 (from .../libkrb5-3_1.10+dfsg~beta1-2_amd64.deb) ...
Selecting previously unselected package libgssapi-krb5-2.
Unpacking libgssapi-krb5-2 (from .../libgssapi-krb5-2_1.10+dfsg~beta1-2_amd64.deb) ...
Selecting previously unselected package libsasl2-2.
Unpacking libsasl2-2 (from .../libsasl2-2_2.1.25.dfsg1-3_amd64.deb) ...
Selecting previously unselected package libldap-2.4-2.
Unpacking libldap-2.4-2 (from .../libldap-2.4-2_2.4.28-1.1_amd64.deb) ...
Selecting previously unselected package libexpat1.
Unpacking libexpat1 (from .../libexpat1_2.0.1-7.2_amd64.deb) ...
Selecting previously unselected package libfreetype6.
Unpacking libfreetype6 (from .../libfreetype6_2.4.8-1_amd64.deb) ...
Selecting previously unselected package libpng12-0.
Unpacking libpng12-0 (from .../libpng12-0_1.2.46-4_amd64.deb) ...
Selecting previously unselected package libxau6.
Unpacking libxau6 (from .../libxau6_1%3a1.0.6-4_amd64.deb) ...
Selecting previously unselected package libxdmcp6.
Unpacking libxdmcp6 (from .../libxdmcp6_1%3a1.1.0-4_amd64.deb) ...
Selecting previously unselected package libxcb1.
Unpacking libxcb1 (from .../libxcb1_1.8-1_amd64.deb) ...
Selecting previously unselected package libx11-data.
Unpacking libx11-data (from .../libx11-data_2%3a1.4.4-4_all.deb) ...
Selecting previously unselected package libx11-6.
Unpacking libx11-6 (from .../libx11-6_2%3a1.4.4-4_amd64.deb) ...
Selecting previously unselected package libjpeg8.
Unpacking libjpeg8 (from .../libjpeg8_8c-2_amd64.deb) ...
Selecting previously unselected package libgd2-noxpm.
Unpacking libgd2-noxpm (from .../libgd2-noxpm_2.0.36~rc1~dfsg-6_amd64.deb) ...
Selecting previously unselected package libhpdf-2.2.1.
Unpacking libhpdf-2.2.1 (from .../libhpdf-2.2.1_2.2.1-1_amd64.deb) ...
Selecting previously unselected package mysql-common.
Unpacking mysql-common (from .../mysql-common_5.1.58-1_all.deb) ...
Selecting previously unselected package libmysqlclient16.
Unpacking libmysqlclient16 (from .../libmysqlclient16_5.1.58-1_amd64.deb) ...
Selecting previously unselected package libpq5.
Unpacking libpq5 (from .../libpq5_9.1.2-4_amd64.deb) ...
Selecting previously unselected package emboss-lib.
Unpacking emboss-lib (from .../emboss-lib_6.3.1-6+b1_amd64.deb) ...
Selecting previously unselected package emboss-data.
Unpacking emboss-data (from .../emboss-data_6.3.1-6_all.deb) ...
Selecting previously unselected package emboss.
Unpacking emboss (from .../emboss_6.3.1-6+b1_amd64.deb) ...
Selecting previously unselected package libwcstools0.
Unpacking libwcstools0 (from .../libwcstools0_3.8.4-1_amd64.deb) ...
Selecting previously unselected package wcstools.
Unpacking wcstools (from .../wcstools_3.8.4-1_amd64.deb) ...
dpkg: error processing /var/cache/apt/archives/wcstools_3.8.4-1_amd64.deb (--unpack):
 trying to overwrite '/usr/bin/remap', which is also in package emboss 6.3.1-6+b1
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/wcstools_3.8.4-1_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/remap

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/.