Let me see. My suggestion:
* Run: rpm --import http://www.fedora.us/FEDORA-GPG-KEY
* Get
http://download.fedora.us/fedora/redhat/9/i386/RPMS.stable/yum-2.0.3-0.fdr.1.rh90.noarch.rpm
Install it with "rpm -Uvh yum-2.0.3-0.fdr.1.rh90.noarch.rpm"
Or install it directly with "rpm -ivh http://...." of the network.
RPM can do that.
* Install the Fedora Legacy public key for verifying package signatures.
rpm --import http://www.fedoralegacy.org/FEDORA-LEGACY-GPG-KEY
* Choose a mirror of Fedora Legacy for Red Hat Linux 9 from the website,
e.g. modify /etc/yum.conf in the section that reads
[redhat-updates]
name=Red Hat Linux $releasever ($basearch) updates
baseurl=
http://download.fedora.us/...
to use a different baseurl= such as:
baseurl=http://legacy.linux.duke.edu/redhat/$releasever/updates/$basearch/
* If you don't want any of the Fedora.us add-ons for Red Hat Linux 9,
disable the [fedora-stable] entry in the lower half of /etc/yum.conf.
* Then run "yum update" for the first time to fetch package headers. Note
there is a "yum" service which can download updates at night.