If you have error such as those below,
Error: Package: xCAT-2.8.2-snap201307222333.x86_64 (xcat-2-core) Requires: conserver-xcat Error: Package: xCAT-2.8.2-snap201307222333.x86_64 (xcat-2-core) Requires: syslinux-xcat Error: Package: xCAT-2.8.2-snap201307222333.x86_64 (xcat-2-core) Requires: elilo-xcat Error: Package: xCAT-2.8.2-snap201307222333.x86_64 (xcat-2-core) Requires: ipmitool-xcat >= 1.8.9 Error: Package: 1:xCAT-genesis-scripts-x86_64-2.8.2-snap201307222333.noarch (xcat-2-core) Requires: xCAT-genesis-base-x86_64 Error: Package: xCAT-2.8.2-snap201307222333.x86_64 (xcat-2-core) Requires: xnba-undi
Go to http://sourceforge.net/projects/xcat/files/yum/xcat-dep/rh6/x86_64/ and find the respective rpms that fit the package name