I've seen strange thing in my system and other one (not mine): both are i386 arch. $ yum list installed | grep rawhide | wc -l 520 But they marked as "@rawhide/$releasever", not "rawhide" I've downloaded full file list from fedora repo mirror and checked some packages. For example: $ yum list installed | grep rawhide | grep readline readline.i686 6.0-3.fc12 @rawhide/$releasever But: $ cat fullfilelist | grep i386 | grep readline-6.0-3 linux/releases/12/Everything/i386/os/Packages/readline-6.0-3.fc12.i686.rpm linux/releases/12/Fedora/i386/os/Packages/readline-6.0-3.fc12.i686.rpm It isn't testing package, but it isn't in "@fedora" or "@updates" category. I haven't temporary enabled rawhide repo.
the @<Repo id> is set when the package is installed, it have nothing to do is it is available in the "fedora" or any other repo. You must have installed your F12 from a F12 prerelease, in the yum in F13, you will get @anaconda-InstallationRepo.... for packages installed from installation DVD