Bug#697866: libgtk-3-bin fails to upgrade to 3.4.2-5

[Sébastien Villemot]

Le vendredi 11 janvier 2013 à 19:55 +0530, Vasudev Kamath a écrit :
> On 18:55 Thu 10 Jan     , Michael Biebl wrote:
> > On 10.01.2013 18:25, Vasudev Kamath wrote:
> > > Package: libgtk-3-bin
> > > Version: 3.4.2-5
> > > Severity: serious
> > > 
> > > When trying to upgrade from 3.4.2-4 to 3.4.2-5 I get following error and
> > > aptitude aborts
> > > 
> > > Adding 'diversion of /usr/sbin/update-icon-caches to /usr/sbin/update-icon-caches.gtk2 by libgtk-3-bin'
> > > dpkg-divert: error: rename involves overwriting `/usr/sbin/update-icon-caches.gtk2' with
> > >   different file `/usr/sbin/update-icon-caches', not allowed
> > > dpkg: error processing /var/cache/apt/archives/libgtk-3-bin_3.4.2-5_amd64.deb (--unpack):
> > >  subprocess new pre-installation script returned error exit status 2
> > > Errors were encountered while processing:
> > >  /var/cache/apt/archives/libgtk-3-bin_3.4.2-5_amd64.deb
> > > 
> > > This leaves the package management in broken state hence I marked the
> > > bug as serious
> > 
> > The relevant code hasn't been changed for ages, so I really doubt that
> > it is a problem specific to 3.4.2-5.
> > 
> > What does
> > dpkg -S /usr/sbin/update-icon-caches
> > give you.
> 
> This command gives libgtk2.0-bin, libgtk-3-bin:/usr/sbin/update-icon-caches

[...]

> > What's the output of
> > md5sum /usr/sbin/update-icon-caches*
> >  
> 
> 6a2ca9da3d9e2cbb106f36a54a782ac6  /usr/sbin/update-icon-caches

Let me summarize how I understand the state of your system:

1. dpkg currently does not know about the diversion (since dpkg-diverts
tries to add it during upgrade); said otherwise, the diversion is not
listed in /var/lib/dpkg/diversions

2. the destination of the diversion (/usr/sbin/update-icon-caches.gtk2)
is non-existent

3. dpkg-divert refuses to create the diversion, which is what makes the
upgrade fails

There are two things that I don't understand:

- how your system ended up in 1

- how 1, 2 and 3 can happen together. On my own system, if I try to
reproduce 1 and 2 by editing /var/lib/dpkg/diversions and by
deleting /u/s/u-i-c.gtk2, then dpkg-divert accepts to create the
diversion, i.e. 3 is not happening

I therefore fail to reproduce your problem or even understand its cause.
Additional information would be useful. In particular, the contents
of /var/lib/dpkg/diversions, /var/log/dpkg.log and /var/log/apt/term.log
would be helpful.

Cheers,

-- 
 .''`.    Sébastien Villemot
: :' :    Debian Developer
`. `'     http://www.dynare.org/sebastien
  `-      GPG Key: 4096R/381A7594

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