Hi Till,
Before receiving your mail, I had made a search of all files and directories with the name "foomatic", and had removed most of the ones I found.
Today, with your mail instructions, I reinstalled the foomatic-filters package. 
I'll see if there will be the same kind of errors next time I update the system. Thanks for your help, I'll keep you informed of the future behavior of my installation. 
For your information, a picture is attached giving the files and directories with foomatic name.
Jean




> Message du 11/09/11 20:11
> De : "Till Kamppeter" <email address hidden>
> A : <email address hidden>
> Copie à : 
> Objet : [Bug 839369] Re: package foomatic-filters 4.0.4-0ubuntu1.1 failed to install/upgrade: tentative de remplacement de « /usr/share/foomatic », qui appartient aussi au paquet foomatic-db-engine 0:4.0.4-0ubuntu1
>
> The package installation fails due to /usr/share/foomatic being in both
> foomatic-filters and foomatic-db-engine packages. This should only
> happen if /usr/share/foomatic is a regular file (not a directory) in at
> least one of the two packages. Directories can be part of more than one
> package, as the directory /usr/share/foomatic belongs to both foomatic-
> filters and foomatic-db-engine.
> 
> Can you run the following commands in a terminal window and post the
> output here?
> 
> dpkg -S /usr/share/foomatic
> ls -ld /usr/share/foomatic
> dpkg -L foomatic-db-engine | grep '/usr/share/foomatic$'
> dpkg -c /var/cache/apt/archives/foomatic-filters_*.deb | grep '/usr/share/foomatic/$'
> dpkg -c /var/cache/apt/archives/partial/foomatic-filters_*.deb | grep '/usr/share/foomatic/$'
> dpkg -c /var/cache/apt/archives/foomatic-db-engine_*.deb | grep '/usr/share/foomatic/$'
> 
> After having done so, try to recover via the commands:
> 
> sudo apt-get clean
> sudo apt-get install -f
> sudo apt-get install foomatic-filters
> 
> 
> ** Changed in: foomatic-filters (Ubuntu)
> Status: New => Incomplete
> 
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/839369
> 
> Title:
> package foomatic-filters 4.0.4-0ubuntu1.1 failed to install/upgrade:
> tentative de remplacement de « /usr/share/foomatic », qui appartient
> aussi au paquet foomatic-db-engine 0:4.0.4-0ubuntu1
> 
> Status in “foomatic-filters” package in Ubuntu:
> Incomplete
> 
> Bug description:
> I got an update message, I confirmed the installation, the result was
> the error in installing the foomatic-filters pachage
> 
> ProblemType: Package
> DistroRelease: Ubuntu 10.04
> Package: foomatic-filters 4.0.4-0ubuntu1
> ProcVersionSignature: Ubuntu 2.6.32-33.72-generic 2.6.32.41+drm33.18
> Uname: Linux 2.6.32-33-generic x86_64
> Architecture: amd64
> CupsErrorLog:
> 
> Date: Fri Sep 2 09:06:00 2011
> ErrorMessage: tentative de remplacement de « /usr/share/foomatic », qui appartient aussi au paquet foomatic-db-engine 0:4.0.4-0ubuntu1
> Lpstat: device for Epson-Stylus-D92: dnssd://EPSON%20Stylus%20D92%20%40%20jean-desktop._ipp._tcp.local/cups
> MachineType: Packard Bell EasyNote LJ65
> Papersize: a4
> PpdFiles: Epson-Stylus-D92: Epson Stylus D92 - CUPS+Gutenprint v5.2.5 Simplified
> ProcCmdLine: root=UUID=b0b74dbc-728e-48cb-b1f7-a7f176b03998 ro quiet splash
> SourcePackage: foomatic-filters
> Title: package foomatic-filters 4.0.4-0ubuntu1 failed to install/upgrade: tentative de remplacement de « /usr/share/foomatic », qui appartient aussi au paquet foomatic-db-engine 0:4.0.4-0ubuntu1
> dmi.bios.date: 02/08/2010
> dmi.bios.vendor: Packard Bell
> dmi.bios.version: V2.09
> dmi.board.asset.tag: Base Board Asset Tag
> dmi.board.name: EasyNote LJ65
> dmi.board.vendor: Packard Bell
> dmi.board.version: V2.09
> dmi.chassis.type: 10
> dmi.chassis.vendor: Packard Bell
> dmi.chassis.version: V2.09
> dmi.modalias: dmi:bvnPackardBell:bvrV2.09:bd02/08/2010:svnPackardBell:pnEasyNoteLJ65:pvrV2.09:rvnPackardBell:rnEasyNoteLJ65:rvrV2.09:cvnPackardBell:ct10:cvrV2.09:
> dmi.product.name: EasyNote LJ65
> dmi.product.version: V2.09
> dmi.sys.vendor: Packard Bell
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/foomatic-filters/+bug/839369/+subscriptions
> 

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