Running up2date -uf ona Fedora Core 2 I get the following output: Fetching Obsoletes list for channel: fedora-core-2... Fetching Obsoletes list for channel: updates-released-fc2... Name Version Rel ---------------------------------------------------------- fam 2.6.10 9.FC2 i386 fam-devel 2.6.10 9.FC2 i386 iiimf-client-lib 11.4 46.1.svn1587 i386 iiimf-client-lib-devel 11.4 46.1.svn1587 i386 iiimf-protocol-lib 11.4 46.1.svn1587 i386 iiimf-protocol-lib-devel 11.4 46.1.svn1587 i386 initscripts 7.55.1 1 i386 ppp 2.4.2 3.FC2.1 i386 Testing package set / solving RPM inter-dependencies... There was a package dependency problem. The message was: Unresolvable chain of dependencies: fam-devel 2.6.10-9.FC2 requires libselinux-devel Then no update is performed. What can I do ? Thanks Gianni Bragante