Bug#706110: libgnome{, vfs}2-common: fails to upgrade from squeeze: prerm failure: gconf-schemas: not found

[Michael Biebl]

Am 25.04.2013 14:26, schrieb Julien Cristau:

> Thoughts in random order...
> 1) this is terrible

A dangling /usr/bin/python symlink is indeed bad. At least that
convinced me to never use anything pythonish in the maintainer scripts
in the future.

> 2) in the absence of loops, dpkg ought to unpack python2.7-minimal
>    before python-minimal

I'm not sure what's going on here, but in the log [1] from anbe
python2.7-minimal is not unpacked *at all*.

> 3) adding pre-depends at this stage makes me extremely wary
> 4) rewriting gconf-schemas only helps if gconf-schemas is upgraded
>    before its reverse deps

All packages shipping gconf schemas have a Depends on gconf2. It is
generated via dh_gconf which adds "gconf2 (>= 2.28.1-2)" to misc:Depends.

This version is already satisfied by gconf2 from squeeze. We could bump
that and binNMU the rdeps. But then we'd have some arch:all rdeps (which
would need sourceful uploads) and I'm actually not sure if a more
tightened Depends actually ensures that the new gconf2 is unpacked
before its rdeps. Does anyone know?

> 5) do we know why this only shows up now, and if there are real world
>    cases where this issue occurs?

I've never seen this before. Maybe anbe can tell us a bit more about the
test setup he used.

Michael


[1]
http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=5;filename=science-typesetting_1.0.log.gz;att=1;bug=706110
-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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