I just helped someone with up2date on the IRC channel, we discovered a documentation bug: http://www.fedoralegacy.org/docs/up2date-fc1-reconfigure.php gives this configuration for /etc/sysconfig/rhn/sources: # Fedora Legacy FC1 os repository yum os http://download.fedoralegacy.org/fedora/1/os/i386/ # Fedora Legacy FC1 updates repository yum os http://download.fedoralegacy.org/fedora/1/updates/i386/ # Fedora Legacy FC1 legacy-utils repository yum os http://download.fedoralegacy.org/fedora/1/legacy-utils/i386/ Those three lines should have different repository names, like "os", "updates" and "legacy-utils", or up2date does weird things, like give errors such as "I/O error: Not a gzipped file". Here is the fixed config: # Fedora Legacy FC1 os repository yum os http://download.fedoralegacy.org/fedora/1/os/i386/ # Fedora Legacy FC1 updates repository yum updates http://download.fedoralegacy.org/fedora/1/updates/i386/ # Fedora Legacy FC1 legacy-utils repository yum legacy-utils http://download.fedoralegacy.org/fedora/1/legacy-utils/i386/ -- fedora-legacy-list@xxxxxxxxxx http://www.redhat.com/mailman/listinfo/fedora-legacy-list