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Re: Problem with apt-get/dselect/aptitude and unstable/stable packages



On Sat, Oct 18, 2003 at 11:59:20PM +0100, Joseph Jones wrote:
> Monique Y. Herman wrote:
> 
> >On Sat, 18 Oct 2003 at 14:51 GMT, Joseph Jones penned:
> > 
> >
> >>I installed some unstable packages, and I'd like to know whether
> >>there's a way of having dselect or whatever un-install all the
> >>unstable packages without having to mess around fixing dependancies.
> >>As in, I don't want it to do anything but un-install all the unstable
> >>packages. My apt-get has been effectively frozen for several days
> >>simply because it was impossible to un-install these packages without
> >>scaring a newbie like me off.
> >>
> >>Any help appreciated :)

Look at "man apt_preferences".
Create an /etc/apt/preferences that consists of three lines:

Package: *
Pin: release a=stable
Pin-Priority: 1001

#apt-get update
#apt-get --simulate dist-upgrade

If this looks like it will accomplish the downgrade, rerun apt-get
without the simulate option.

#apt-get -u dist-upgrade

After downgrade back to stable, if you still want to be able to
install testing or unstable packages, change /etc/apt/preferences to:

Package: *
Pin: release a=stable
Pin-Priority: 990

Package: *
Pin: release a=testing
Pin-Priority: 70

Package: *
Pin: release a=unstable
Pin-Priority: 70

> >>
> >>   
> >>
> >
> >I think there's some critical info missing from your problem
> >description.  Are you currently running stable and installed some
> >unstable packages?
> >
> >What is happening when you try to uninstall these unstable packages that
> >doesn't happen when you try to uninstall your stable packages?
> >
> Well, whenever apt-get tries to do anything, it says "Sorry, but the 
> following packages have unmet dependencies:"
> 
> And lists a load of packages. I'm running stable with some unstable 
> packages, and I get this error whenever apt-get tries to do anything. 
> The last line says something about using a -f option. When I checked the 
> help, it said that it disregards the integrity check. I suspect that 
> these packages are dependencies of linneighborhood, but I can't figure 
> out why dselect/aptitude (whichever I used to d/l linneighborhood from 
> the unstable set) didn't download them as well. Now it's stuck in this 
> state.
> 
> 

-- 
Jerome

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