Re: [setup topic/libsolv] Packages contained in multiple repositories

[Achim Gratz <Stromeko@nexgo.de>]

Ken Brown writes:
> In retrospect, I'm not sure this patch is right, but I'm sending it
> anyway for the sake of discussion.  My hesitation comes from the fact
> that libsolv might have a good reason for preferring the one it chose,
> e.g., if we've assigned priorities to the repos.  On the other hand,
> if we've gone to the trouble of assigning priorities, shouldn't
> packagemeta reflect our choice?

Extrapolating from my experience with zypper, libsolv should stick with
the repo the installed package comes from even if some other repo has a
newer version.  The whole purpose of the "dup" command in zypper is to
lift that restriction (compared to the normal "up") and consider the
highest version from any repo as the preferred package (unless more
specific dependencies would yield a lower version or repo priorities
override the default algorithm).

This is often used for example to update just a single application to
something different from the main distribution: chose an extra repo,
install just one of many applications from that repo and then keep
updating the system normally.  The updates will come from your install
repo and just that single application will be updated from the extra
repo instead.


Regards,
Achim.
-- 
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