This evening I created a new package "nagios" in home:johnberanek:nagios3. This was an import of a package from EPEL6. As received from EPEL6 it builds happily on a CentOS 5 machine, but in OBS with RHEL5/CentOS5 build target it fails with "unresolvable: nothing provides user(nagios), group(nagios)". The package spec has: Requires: user(nagios) Requires(pre): user(nagios) Requires: group(nagios) Requires(pre): group(nagios) Provides: user(nagios) Provides: group(nagios) On the advice of darix/coolo I solved the problem with a bootstrap procedure of commenting out the Requires(pre) lines, and this allows the build to complete. At this point I should be possible to put the Requires(pre) lines back. However, that bootstrap hack is hardly obvious/"nice" behaviour for OBS. ;) Right, that's all for now. John. -- John Beranek To generalise is to be an idiot. http://redux.org.uk/ -- William Blake