[Pkg-postgresql-public] Bug#679860: postgresql-client-common and postgres-xc-contrib: error when trying to install together

Ralf Treinen treinen at free.fr
Mon Jul 2 07:05:22 UTC 2012


Package: postgres-xc-contrib,postgresql-client-common
Version: postgres-xc-contrib/1.0.0-1
Version: postgresql-client-common/132
Severity: serious
User: treinen at debian.org
Usertags: edos-file-overwrite

Date: 2012-07-02
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!
  libbsd0 libedit2 libkeyutils1 libkrb5support0 libk5crypto3 libkrb5-3
  libgssapi-krb5-2 libsasl2-2 libldap-2.4-2 libxml2 libxslt1.1 libossp-uuid16
  libpq5 openssl postgres-xc-client ssl-cert postgres-xc postgres-xc-contrib
  postgresql-client-common
Preconfiguring packages ...
Authentication warning overridden.
Can not write log, openpty() failed (/dev/pts not mounted?)
Selecting previously unselected package libbsd0:amd64.
(Reading database ... 10720 files and directories currently installed.)
Unpacking libbsd0:amd64 (from .../libbsd0_0.4.2-1_amd64.deb) ...
Selecting previously unselected package libedit2:amd64.
Unpacking libedit2:amd64 (from .../libedit2_2.11-20080614-5_amd64.deb) ...
Selecting previously unselected package libkeyutils1:amd64.
Unpacking libkeyutils1:amd64 (from .../libkeyutils1_1.5.5-3_amd64.deb) ...
Selecting previously unselected package libkrb5support0:amd64.
Unpacking libkrb5support0:amd64 (from .../libkrb5support0_1.10.1+dfsg-1_amd64.deb) ...
Selecting previously unselected package libk5crypto3:amd64.
Unpacking libk5crypto3:amd64 (from .../libk5crypto3_1.10.1+dfsg-1_amd64.deb) ...
Selecting previously unselected package libkrb5-3:amd64.
Unpacking libkrb5-3:amd64 (from .../libkrb5-3_1.10.1+dfsg-1_amd64.deb) ...
Selecting previously unselected package libgssapi-krb5-2:amd64.
Unpacking libgssapi-krb5-2:amd64 (from .../libgssapi-krb5-2_1.10.1+dfsg-1_amd64.deb) ...
Selecting previously unselected package libsasl2-2:amd64.
Unpacking libsasl2-2:amd64 (from .../libsasl2-2_2.1.25.dfsg1-4+b1_amd64.deb) ...
Selecting previously unselected package libldap-2.4-2:amd64.
Unpacking libldap-2.4-2:amd64 (from .../libldap-2.4-2_2.4.31-1_amd64.deb) ...
Selecting previously unselected package libxml2:amd64.
Unpacking libxml2:amd64 (from .../libxml2_2.8.0+dfsg1-4_amd64.deb) ...
Selecting previously unselected package libxslt1.1:amd64.
Unpacking libxslt1.1:amd64 (from .../libxslt1.1_1.1.26-12+rebuild1_amd64.deb) ...
Selecting previously unselected package libossp-uuid16.
Unpacking libossp-uuid16 (from .../libossp-uuid16_1.6.2-1.3_amd64.deb) ...
Selecting previously unselected package libpq5.
Unpacking libpq5 (from .../libpq5_9.1.4-2_amd64.deb) ...
Selecting previously unselected package openssl.
Unpacking openssl (from .../openssl_1.0.1c-3_amd64.deb) ...
Selecting previously unselected package postgres-xc-client.
Unpacking postgres-xc-client (from .../postgres-xc-client_1.0.0-1_amd64.deb) ...
Selecting previously unselected package ssl-cert.
Unpacking ssl-cert (from .../ssl-cert_1.0.31_all.deb) ...
Selecting previously unselected package postgres-xc.
Unpacking postgres-xc (from .../postgres-xc_1.0.0-1_amd64.deb) ...
Selecting previously unselected package postgres-xc-contrib.
Unpacking postgres-xc-contrib (from .../postgres-xc-contrib_1.0.0-1_amd64.deb) ...
Selecting previously unselected package postgresql-client-common.
Unpacking postgresql-client-common (from .../postgresql-client-common_132_all.deb) ...
dpkg: error processing /var/cache/apt/archives/postgresql-client-common_132_all.deb (--unpack):
 trying to overwrite '/usr/bin/pg_basebackup', which is also in package postgres-xc 1.0.0-1
Processing triggers for man-db ...
Errors were encountered while processing:
 /var/cache/apt/archives/postgresql-client-common_132_all.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/vacuumlo

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/.





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