use rpmbuild -bb yaboot-xcat.spec to make the build yaboot-xcat-1.3.17-rc1.noarch.rpm Patchs overview: These patches are no use now: 1. yaboot-skipmac.patch--done This patch is used to skip using mac address in the configuration file. Since the P775 will use the mac address in the configuration file, I think it is no use anymore. 2. yaboot-1.3.15-promclaim.patch The newest official yaboot build has contained this patch. 3. yaboot-1.3.14-better_netboot.patch The newest official yaboot build has contained this patch. 4. yaboot-1.3.14-ipv6.patch The newest official yaboot build has contained this patch. 5. yaboot-fixes.patch This patch was not used in the last xcat-yaboot build. 6. yaboot-1.3.14-better_netboot2.patch The newest official yaboot build has contained this patch. 7. yaboot-1.3.14-move_kernel.patch Free the TFTP load buffer so the booted kernel has some memory to run with. It is no use for 3.17-rc1 yaboot build. These patches will be used in the new build. 1. yaboot-32bitbuild.patch Add the "-m32" compiler switch to tell GCC to compile user code as 32-bit. 2. yaboot-sanedhcppriority.patch Use the mask and gateway from bootp package to overwrite the existed boot-path. I've no idea about the reason of this patch, and don't think it is a necessary patch but still leave it here. New patches: 1. yaboot-promclaim.patch Claime big size on pROM for the large initrd file. 2. yaboot-debug.patch This patch adds some print and enable the debug information in yaboot, used to debug problems.