[root@Xena etc]# yum update
Gathering header information file(s) from server(s)
Server: Fedora Core 2 - Base
Server: Fedora Legacy utilities for Fedora Core 2
Server: Fedora Core 2 updates
Finding updated packages
Downloading needed headers
Resolving dependencies
.....Unable to satisfy dependencies
Package glibc-dummy-fedora-core-2 needs glibc-common = 2.3.3-27.1, this is not available.