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Re: Configuring /etc/apt/preferences



On 2004-04-23 20:39:27 +0200, Andrei Badea wrote:
> I tried to change /etc/apt/preferences to this (one single rule):
> 
> Package: *
> Pin: origin ftp.cz.debian.org
> Pin-Priority: 999
> 
> in order to increase the priority, just to see what would happen. 
> Unfortunately nothing, on apt-cache policy I get the same list that I 
> posted before. All sources have the same priority 990. Maybe the 
> "origin" syntax is wrong?

You probably need the scheme too (e.g. ftp://ftp.cz.debian.org)
and possibly more (the full path after "deb" or "seb-src" in
/etc/apt/sources.list). But I've never tried.

> >This 990 may come from that [from apt_preferences(5)]:
> >
> >   priority 990
> >       to  the versions that are not installed and belong to the target
> >       release.
> >
> >(whatever the source...).
> 
> Indeed, I set the target release to unstable in apt.conf.

I avoid that by not using any target release in apt.conf, as it is
useless (and possibly harmful[*]) when using preferences.

[*] For instance, this could prevent security updates from being applied.

My /etc/apt/preferences file:

Package: *
Pin: release a=stable
Pin-Priority: 900

Package: *
Pin: release a=testing
Pin-Priority: 900

Package: *
Pin: release a=unstable
Pin-Priority: 200

to track both stable and testing by default (the testing version is
more recent, so that I get this one, except when the versions in stable
and testing are the same and there is a security update, in which case
I get this security update). And I allow unstable packages, which I can
install with "apt-get install -t unstable".

-- 
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/>
100% validated (X)HTML - Acorn / RISC OS / ARM, free software, YP17,
Championnat International des Jeux Mathématiques et Logiques, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA



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