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From: spam.spam.spam.spam on 10 Aug 2010 08:50 Hello, If I create a package with the same file than an other package which is already installed on my computer, I can't install it. But when I download a package with the same file than an other package which is already installed on my computer, I can install it. Now I prove it : I have 2 packages with the same file : -nvidia-glx -xserver-xorg-core The file is : /usr/lib/xorg/modules/extensions/libglx.so We can see it doing : $ apt-file list nvidia-glx $ apt-file list xserver-xorg-core or : $ dpkg -c nvidia-glx_173.14.09-5_i386.deb $ dpkg -c xserver-xorg-core_1.4.2-10.lenny2_i386.deb When I try to install these two packages, it works : $ sudo dpkg -i nvidia-glx_173.14.09-5_i386.deb (Lecture de la base de donn�es... 83916 fichiers et r�pertoires d�j� install�s.) Pr�paration du remplacement de nvidia-glx 173.14.09-5 (en utilisant ..../nvidia-glx_173.14.09-5_i386.deb) ... D�paquetage de la mise � jour de nvidia-glx ... Param�trage de nvidia-glx (173.14.09-5) ... $ sudo dpkg -i xserver-xorg-core_1.4.2-10.lenny2_i386.deb (Lecture de la base de donn�es... 83916 fichiers et r�pertoires d�j� install�s.) Pr�paration du remplacement de xserver-xorg-core 2:1.4.2-10.lenny2 (en utilisant ..../xserver-xorg-core_1.4.2-10.lenny2_i386.deb) ... D�paquetage de la mise � jour de xserver-xorg-core ... Param�trage de xserver-xorg-core (2:1.4.2-10.lenny2) ... Traitement des actions diff�r�es (��triggers��) pour � man-db �... So, I create my own package with this file : $ mkdir -p mypkg/DEBIAN $ touch mypkg/DEBIAN/control $ gvim mypkg/DEBIAN/control $ mkdir -p mypkg/usr/lib/xorg/modules/extensions $ ln -s foo.so mypkg/usr/lib/xorg/modules/extensions/libglx.so $ sudo chown -R root:root mypkg/ $ dpkg-deb --build mypkg The content of the DEBIAN/control file is : Package: mypkg Version: 20100810 Description: This is my package. Architecture: i386 Maintainer: Mr. X When I try to install this package, it doesn't works : $ sudo dpkg -i mypkg.deb S�lection du paquet mypkg pr�c�demment d�s�lectionn�. (Lecture de la base de donn�es... 83916 fichiers et r�pertoires d�j� install�s.) D�paquetage de mypkg (� partir de mypkg.deb) ... dpkg�: erreur de traitement de mypkg.deb (--install)�: tentative de remplacement de ��/usr/lib/xorg/modules/extensions/libglx.so��, qui appartient aussi au paquet xserver-xorg-core Des erreurs ont �t� rencontr�es pendant l'ex�cution�: mypkg.deb Why can I install nvidia-glx package and I can't install mypkg package? Thank you. (sorry for the french messages, I don't want to change my locale but if you consider it is very important to see the messages in english I can do it) -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/1281444325.4c6149e57c24d(a)imp.free.fr
From: Chris Jackson on 10 Aug 2010 10:10 spam.spam.spam.spam(a)free.fr wrote: > (sorry for the french messages, I don't want to change my locale but if you > consider it is very important to see the messages in english I can do it) It'd probably help. You don't have to (well, shouldn't have to) permanantly change your locale to do it, just: export LC_ALL=en_US.UTF-8 do your stuff, and unset LC_ALL to go back to French. -- Chris Jackson Shadowcat Systems Ltd. -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4C6151C6.7070809(a)shadowcat.co.uk
From: Boyd Stephen Smith Jr. on 10 Aug 2010 11:10 In <1281444325.4c6149e57c24d(a)imp.free.fr>, spam.spam.spam.spam(a)free.fr wrote: >If I create a package with the same file than an other package which is >already installed on my computer, I can't install it. But when I download a >package with the same file than an other package which is already installed >on my computer, I can install it. Not true, normally. dpkg can't tell where a .deb came from; that information is not stored inside the package. It checks all packages for file-level conflicts as part of installing them. >Now I prove it : > >I have 2 packages with the same file : >-nvidia-glx >-xserver-xorg-core > >The file is : /usr/lib/xorg/modules/extensions/libglx.so nvidia-glx uses a "diversion" to force the libglx.so file from any other package to be moved / installed to an alternate location. Your packages can also use diversion(s), if need be. IIRC diversions are a bit out-of-favor as far as packaging style, but there are some cases where they are the best solution. http://www.debian.org/doc/debian-policy/ap-pkg-diversions.html and the dpkg- divert(8) man page are probably the best references on this dpkg feature. Consider using the alternatives system instead. It scales better and is (IMO) easier for a administrator to adjust to local policy. The "disadvantage" is that all the packages providing a file must be modified to do so though the alternatives system. (As opposed to the diversion system, where only one package is the pair actually uses it; nvidia-glx in your case.) NB: I spelled it "divertion" each and every time I typed it in this message and had to correct it. :( -- Boyd Stephen Smith Jr. ,= ,-_-. =. bss(a)iguanasuicide.net ((_/)o o(\_)) ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-' http://iguanasuicide.net/ \_/
From: spam.spam.spam.spam on 12 Aug 2010 13:40 Hello, If I create a package with the same file than an other package which is already installed on my computer, I can't install it. But when I download a package with the same file than an other package which is already installed on my computer, I can install it. Now I prove it : I have 2 packages with the same file : -nvidia-glx -xserver-xorg-core The file is : /usr/lib/xorg/modules/extensions/libglx.so We can see it doing : $ apt-file list nvidia-glx $ apt-file list xserver-xorg-core or : $ dpkg -c nvidia-glx_173.14.09-5_i386.deb $ dpkg -c xserver-xorg-core_1.4.2-10.lenny2_i386.deb When I try to install these two packages, it works : $ sudo dpkg -i nvidia-glx_173.14.09-5_i386.deb (Reading database ... 87860 files and directories currently installed.) Preparing to replace nvidia-glx 173.14.09-5 (using nvidia-glx_173.14.09-5_i386.deb) ... Unpacking replacement nvidia-glx ... Setting up nvidia-glx (173.14.09-5) ... $ sudo dpkg -i xserver-xorg-core_1.4.2-10.lenny2_i386.deb (Reading database ... 87860 files and directories currently installed.) Preparing to replace xserver-xorg-core 2:1.4.2-10.lenny2 (using xserver-xorg-core_1.4.2-10.lenny2_i386.deb) ... Unpacking replacement xserver-xorg-core ... Setting up xserver-xorg-core (2:1.4.2-10.lenny2) ... Processing triggers for man-db ... So, I create my own package with this file : $ mkdir -p mypkg/DEBIAN $ touch mypkg/DEBIAN/control $ gvim mypkg/DEBIAN/control $ mkdir -p mypkg/usr/lib/xorg/modules/extensions $ ln -s foo.so mypkg/usr/lib/xorg/modules/extensions/libglx.so $ sudo chown -R root:root mypkg/ $ dpkg-deb --build mypkg The content of the DEBIAN/control file is : Package: mypkg Version: 20100810 Description: This is my package. Architecture: i386 Maintainer: Mr. X When I try to install this package, it doesn't works : $ sudo dpkg -i mypkg.deb$ sudo dpkg -i mypkg.deb (Reading database ... 87860 files and directories currently installed.) Unpacking mypkg (from mypkg.deb) ... dpkg: error processing mypkg.deb (--install): trying to overwrite `/usr/lib/xorg/modules/extensions/libglx.so', which is also in package xserver-xorg-core Errors were encountered while processing: mypkg.deb Why can I install nvidia-glx package and I can't install mypkg package? Thank you. (the french messages are now translated into english) Quoting Chris Jackson <c.jackson(a)shadowcat.co.uk>: > spam.spam.spam.spam(a)free.fr wrote: > > > (sorry for the french messages, I don't want to change my locale but if you > > consider it is very important to see the messages in english I can do it) > > It'd probably help. You don't have to (well, shouldn't have to) > permanantly change your locale to do it, just: > > export LC_ALL=en_US.UTF-8 > > do your stuff, and > > unset LC_ALL > > to go back to French. > > -- > Chris Jackson > Shadowcat Systems Ltd. > > > -- > To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org > Archive: http://lists.debian.org/4C6151C6.7070809(a)shadowcat.co.uk > > -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/1281634592.4c643120aba03(a)imp.free.fr
From: Florian Kulzer on 12 Aug 2010 19:10
On Thu, Aug 12, 2010 at 19:36:32 +0200, spam.spam.spam.spam(a)free.fr wrote: > Hello, > > If I create a package with the same file than an other package which is already > installed on my computer, I can't install it. But when I download a package with > the same file than an other package which is already installed on my computer, I > can install it. > > Now I prove it : > > I have 2 packages with the same file : > -nvidia-glx > -xserver-xorg-core > > The file is : /usr/lib/xorg/modules/extensions/libglx.so [...] > So, I create my own package with this file : [...] > Why can I install nvidia-glx package and I can't install mypkg package? The nvidia-glx package uses a diversion to avoid the file conflict; the manpage of the dpkg-divert command has more information about this approach. -- Regards, | Florian | -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/20100812224421.GA4666(a)isar.localhost |