Hi all, I would like to bring into your consideration an issue that appeared to me on CentOS and that might also appear on SL (I haven't tested it, only next week after Christmas I have some time to check out). It can be that there is no issue with SL, though I believe that it won't be the case. The package 'redhat-rpm-config' places a shell script called 'dist.sh' on /usr/lib/rpm/redhat. This script is used by some macro's to determine the correct suffix when generating a package (el5, el6, fc16, etc). This script can be run with arguments which should return values, for example: $/usr/lib/rpm/redhat/dist.sh --dist # should return el6 on Enterprise Linux 6. $/usr/lib/rpm/redhat/dist.sh --disttype # should return el $/usr/lib/rpm/redhat/dist.sh --distnum # should return 6 on Enterprise Linux 6. redhat-rpm-config on CentOS6 doesn't properly return --disttype and --dist. I have opened a bug on CentOS bugzilla (http://bugs.centos.org/view.php?id=5331&nbn=2). In case you want to check this situation on Scientific Linux, could be interesting. While I don't run on product SL or CentOS (only use pure RHEL), I find it easier to build my packages with mock or openSUSE Build System on CentOS or Scientific Linux. This bug prevents that the 'el6' suffix gets on the package name. Hope this helps. NM