centos.mirror.nac.net is out of sync (at least for updates) http://centos.mirror.nac.net/5.3/updates/x86_64/RPMS/ vs http://ftp.osuosl.org/pub/centos/5.3/updates/x86_64/RPMS/ this is what is causing the nss/nss-devel error when doing a yum update Transaction Check Error: package nss-3.12.2.0-4.el5.centos (which is newer than nss-3.12.2.0-2.el5.centos) is already installed Kingsly -- --------------------------------------------------------------------------- Kingsly At Users Dot SourceForge Dot Net -- http://kingsly.org/ --------------------------------------------------------------------------- -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20090402/7f199909/attachment-0004.sig>