How to replace a newer package from dead repo with its older fedora version?

[Michael Schwendt]

On Thu, 1 Jan 2015 18:21:48 +0100, Clemens Eisserer wrote:

> Hi,
> 
> I once installed the unofficial mesa-10.1 update provided by fschwarz
> - which also installed a newer version of libxcb.
> Since then, Fedora-20 includes mesa-10.3 and most packages provided by
> fschwarz have been replaced by newer versions contained in the
> official fedora repo.
> 
> However, I still have a newer version of libxcb installed (1.10.1)
> whereas fedora only provides 1.9.1.
> Recently I tried installing QT5 and it failed:
> 
> Error: Package: qt5-qtbase-gui-5.4.0-2.fc20.x86_64 (updates)
>            Requires: libxcb-xkb.so.0()(64bit)
>            Available: libxcb-1.9.1-3.fc20.x86_64 (fedora)
>                libxcb-xkb.so.0()(64bit)
>            Installed: libxcb-1.10-1.fc20.i686 (@fschwarz-mesa10-i686)
>                Not found
> Error: Package: qt5-qtbase-gui-5.4.0-2.fc20.x86_64 (updates)
>            Requires: libxcb-sync.so.0()(64bit)
>            Available: libxcb-1.9.1-3.fc20.x86_64 (fedora)
>                libxcb-sync.so.0()(64bit)
>            Installed: libxcb-1.10-1.fc20.i686 (@fschwarz-mesa10-i686)
>                Not found
> 
> 
> Any attempts to replace libxcb-1.10 with the officially provided
> libxcb-1.9.1 failed.
> "yum reinstall" complains libxcb-1.10 is no longer available, and yum
> remove would pull all dependencies along with libxcb (3.9G) which also
> isn't such a great idea.
> 
> So any idea how to get rid of libxcb-1.10.1 are very welcome ;)

"yum downgrade libxcb"
or
"yum distro-sync"

Both assume that the newer libxcb really isn't offered in the fschwarz
repo anymore (or that you disable that repo), or else it would be pulled
in as an upgrade again next time you run yum update.