Re: is this sensible?
On Fri, Jun 27, 2014 at 12:07:40PM +0200, François Patte wrote:
> Le 25/06/2014 14:11, Floris a écrit :
> > Op Wed, 25 Jun 2014 14:06:25 +0200 schreef Floris
> > <jkfloris@dds.nl>:
> >
> >> Op Wed, 25 Jun 2014 11:51:17 +0200 schreef François Patte
> >> <francois.patte@mi.parisdescartes.fr>:
> >>
> >>> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
> >>>
> >>> Le 25/06/2014 11:01, Weaver a écrit :
> >>>>
> >>>> On Wed, June 25, 2014 1:57 am, François Patte wrote:
> >>>>> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
> >>>>>
> >>>>> Le 25/06/2014 10:49, Lisi Reisz a écrit :
> >>>>>> On Wednesday 25 June 2014 09:32:22 François Patte wrote:
> >>>>>>> I wanted to update my gthumb package (wich became ugly
> >>>>>>> for an unknown reason....). So I asked:
> >>>>>>>
> >>>>>>> apt-get install gthumb
> >>>>
> >>>> Before installing anything, always update. This is what the
> >>>> machine is actually trying to do.
> >>>>
> >>>> Update, so that everything is current, then install the
> >>>> required package immediately, and you won't have that
> >>>> trouble. Cheers!
> >>>
> >>> The problem is: why do I have to install, for instance,
> >>> gcc-4.9-base gcc-4.9-base:i386 (I don't want to compile
> >>> anything...)
> >>>
> >>> why do I have to install these xserver:
> >>>
> >>> xserver-xorg-core xserver-xorg-input-evdev
> >>> xserver-xorg-input-mouse xserver-xorg-input-synaptics
> >>> xserver-xorg-input-vmmouse xserver-xorg-input-wacom
> >>> xserver-xorg-video-all xserver-xorg-video-ati
> >>> xserver-xorg-video-cirrus xserver-xorg-video-fbdev
> >>> xserver-xorg-video-intel xserver-xorg-video-mach64
> >>> xserver-xorg-video-mga xserver-xorg-video-modesetting
> >>> xserver-xorg-video-neomagic xserver-xorg-video-nouveau
> >>> xserver-xorg-video-nvidia xserver-xorg-video-openchrome
> >>> xserver-xorg-video-r128 xserver-xorg-video-radeon
> >>> xserver-xorg-video-savage xserver-xorg-video-siliconmotion
> >>> xserver-xorg-video-sisusb xserver-xorg-video-tdfx
> >>> xserver-xorg-video-trident xserver-xorg-video-vesa
> >>> xserver-xorg-video-vmware
> >>>
> >>> I have an nvidia graphic card, so, if needed "nouveau" but I
> >>> use the proprietary driver...
> >>>
> >>> Why should I install systemd?
> >>>
> >>> etc. etc.
> >>>
> >>> I just wanted to work with gthumb, but it was broken by a
> >>> preceeding update....
> >>>
> >>> I waste more time to recover a system than to work....
> >>>
> >>
> >> try: #apt-get install --no-install-recommends gthumb
> >>
> >> But I think there is a xserver-xorg-input-all and
> >> xserver-xorg-video-all dependency somewhere. Installing
> >> "xserver-xorg-input-evdev" and "xserver-xorg-video-nvidia" should
> >> be enough to satisfy all packages
> >>
> >> See: https://packages.debian.org/wheezy/gthumb for a list of
> >> dependencies
> >
> > for example:
> >
> > gthumb needs libc6 needs libgcc1 needs gcc-4.7-base
>
> This what is writen as dependencies in packages... OK but I am
> wondering why gthumb (and its dependencies) needs to install systemd
That sounds like a challenge :)
gthumb (3:3.3.1-2) depends on:
gsettnings-desktop-schemas depends on:
dconf-gsettings-backend depends on:
dconf-service depends on:
... No, this doesn't look right
libgtk-3.0 (>=3.10.0) depends on:
... more libraries...
I don't see anything there that would bring in systemd.
HOWEVER, this is, assuming an otherwise up-to-date system. gthumb *does*
have a number of versioned dependencies (see, for example, the
libgtk-3.0 dependency which states that, to run this version of gthmub,
you need a new enough version of libgtk-3.0). Updating those libraries
will have unforeseen consequences. Updating libgtk-3.0 may violate a
"breaks" dependency (these are not shown on the website, but I see that
libgtk-3.0 has a "Breaks: gnome-themes-standard" clause). Your options
then, to solve that breakage, are either to refuse the installation
(not exactly ideal as the user asked for the installation) or to find
an alternate package that replaces the broken package - that might be a
newer version, or it might be something else that replaces the broken
package.
Now, keep going around that circle until you have a final result. Either
you are able to install the package (by upgrading some portion of the
system to bring everything to a consistent state) or, if not, the
package is uninstallable.
Here, I would heartily recommend using aptitude's interactive mode. Ask
aptitude to install gthumb ('/' to search, enter 'gthumb' and press
enter, press 'n' until you find the right package, then press '+' to
mark for installation), then press 'g' to see the proposed changes,
scroll down to systemd and press 'i' until the bottom pane shows why
systemd is being installed.
>
>
> --
> François Patte
> UFR de mathématiques et informatique
> Laboratoire CNRS MAP5, UMR 8145
> Université Paris Descartes
> 45, rue des Saints Pères
> F-75270 Paris Cedex 06
> Tél. +33 (0)1 8394 5849
> http://www.math-info.univ-paris5.fr/~patte
>
>
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