Bug#800961: singular-ui: fails to upgrade squeeze -> wheezy -> jessie -> stretch

[Andreas Beckmann]

Package: singular-ui
Version: 4.0.2+ds-1
Severity: serious
User: debian-qa at lists.debian.org
Usertags: piuparts

Hi,

during a test with piuparts I noticed your package fails to upgrade from
'squeeze' to 'wheezy' to 'jessie'.
It installed fine in 'squeeze', and upgraded to 'wheezy' and 'jessie'
successfully, but then the upgrade to 'stretch' failed because it tries
to overwrite other packages files without declaring a
Breaks+Replaces relation.

See policy 7.6 at
https://www.debian.org/doc/debian-policy/ch-relationships.html#s-replaces

>From the attached log (scroll to the bottom...):

  Selecting previously unselected package singular-ui.
  Preparing to unpack .../singular-ui_4.0.2+ds-1+b1_amd64.deb ...
  Unpacking singular-ui (4.0.2+ds-1+b1) ...
  dpkg: error processing archive /var/cache/apt/archives/singular-ui_4.0.2+ds-1+b1_amd64.deb (--unpack):
   trying to overwrite '/usr/share/man/man1/Singular.1.gz', which is also in package singular 3-0-4-3.dfsg-3.1
  Selecting previously unselected package singular-modules:amd64.
  Preparing to unpack .../singular-modules_4.0.2+ds-1+b1_amd64.deb ...
  Unpacking singular-modules:amd64 (4.0.2+ds-1+b1) ...
  Preparing to unpack .../singular_4.0.2+ds-1+b1_amd64.deb ...
  Unpacking singular (4.0.2+ds-1+b1) over (3-0-4-3.dfsg-3.1) ...
  Errors were encountered while processing:
   /var/cache/apt/archives/singular-ui_4.0.2+ds-1+b1_amd64.deb

(There is no singular package in wheezy or jessie, so the one from
squeeze was kept installed.)


cheers,

Andreas
-------------- next part --------------
A non-text attachment was scrubbed...
Name: singular_4.0.2+ds-1+b1.log.gz
Type: application/gzip
Size: 52288 bytes
Desc: not available
URL: <http://lists.alioth.debian.org/pipermail/debian-science-maintainers/attachments/20151005/108d9386/attachment-0001.bin>