[root@localhost rhn]# up2date fluxbox
Obsoletes file not available on server

Fetching Obsoletes list for channel: centos4-Base...

Fetching Obsoletes list for channel: centos4-Updates...

Fetching Obsoletes list for channel: centos4-extras...

Fetching Obsoletes list for channel: kb-centos-extras...

Fetching obsoletes list (may take a while, be patient) for http://centos.karan.org/el4/extras/stable/x86_64/RPMS...