centos-announce-request@centos.org wrote:
+++++++++++++++++++++++ Upgrading from CentOS-5.3 ( or CentOS-5.0 / 5.1 / 5.2 ):
If you are already running CentOS-5.3 or an older CentOS-5 distro, all you need to do is update your machine via yum by running :
'yum update'
This seems to conflict with the release notes (http://wiki.centos.org/Manuals/ReleaseNotes/CentOS5.4) which recommend this procedure:
yum clean all yum update glibc* yum update yum* rpm* python* yum clean all yum update shutdown -r now